They say that the ultrasound department is key for any hospital, since this is where the diagnosis of the human body is carried out. A competent specialist here can discern any ailment at an early stage, and early detection is the key to successful treatment. But the trouble is, many people are afraid: isn’t ultrasound harmful? Maybe the radiation received can cause the growth of cancer cells? How to understand such a dilemma?

Ultrasound capabilities

Why do people ask if ultrasound is harmful? Because this research method is still relatively young and developing. The effectiveness is obvious, the accessibility is pleasing, but this does not make the questions any less. Pregnant women are especially worried because they have to regularly be exposed to ultrasound, along with a growing child inside. But, on the other hand, how can you be confident in the healthy and harmonious development of your baby without the use of ultrasound? After all, such an examination method allows you to see in advance possible pathologies and even eradicate them while still inside the womb. So one cannot unfoundedly denigrate ultrasonic waves either in medicine or in other scientific fields. After all, today different possibilities of ultrasonic waves are used: to heat objects, create ultrasonic vibrations, reflect from obstacles, etc.

Relevance of the procedure

The human body is relatively transparent to ultrasonic waves, and therefore, when passing through tissue, these waves create a reflection, the degree and intensity of which is captured by the ultrasound sensor and displayed on the monitor screen. As a result, a specialist can observe your internal organs and assess their condition. The entire ultrasound examination procedure takes, on average, no minutes. In this case, overheating of tissues is not allowed.

In modern medicine, by the way, more powerful ultrasound waves can be used. High intensity focused ultrasound is used for minimally invasive surgical interventions. With its help, the uterus is performed with organ preservation, prostate tumor removal, treatment of atrial fibrillation and shock wave lithotripsy. Ultrasound is also used to perform surgery for pathologies of the pelvic organs and abdominal cavity. But even when using powerful radiation to achieve desired temperature for radical impact it is very problematic. This requires more than 20 thousand W/cm 2 with an exposure duration of three hours. A logical question arises: isn’t ultrasound harmful?

Effect on DNA

When talking about whether ultrasound is harmful, they often refer to the destructive effect of waves on human DNA. This opinion is based on certain developments carried out in the institutes of the USSR before 1992. During this period, personnel working on ultrasound research were classified as “under influence” and received hazard pay. But there was an opinion, but no work was presented to confirm this. So already in 1995, ultrasound was used to diagnose fetal pathologies.

A lot of research has been conducted on the topic “Is it harmful to do an ultrasound?” In particular, it is worth noting the work of neurobiologist Pasko Rakic, who exposed pregnant mice to ultrasound. They proved that systematic exposure for up to half an hour generated a number of changes in the functioning of groups of neurons in the brains of mice. Because of this, the cells lost their ability to work, as their parameters and some characteristics changed greatly. True, no negative changes in the development and functions of the brain were found, so it cannot be said that the changes were dangerous. In the 70s, studies were conducted on the health status of young mothers who underwent ultrasound during pregnancy, and a comparative analysis with women who did without such a study. At the same time, no negative effect on the fetus was found, but a certain characteristic feature was noted - among those women who underwent the study, the boys born were left-handed. This fact confirms some influence of ultrasound on the neurogenic regulation of the fetus.

During pregnancy

If an ordinary person is rarely forced to undergo an ultrasound examination, then the situation is completely different with a pregnant woman. After all, she worries not only about herself, but also about the child. Is ultrasound harmful during pregnancy? This question begins to worry the expectant mother from the first trimester. The feasibility of the study cannot be disputed, since in its process it is possible to identify a number of pathologies and undesirable changes and obtain comprehensive information about how the child feels. With such data, it is possible to take timely measures to optimize the life of the baby and mother.

If the pregnancy is progressing normally, then ultrasound is prescribed only three times. More frequent examinations are indicated only if there is a threat to fetal development. These include development ectopic pregnancy, frozen pregnancy, spontaneous abortion and placental abruption, multiple pregnancy, malformations of the baby and toxicosis later. With such indications, the questionable harm from ultrasound cannot be compared with the real risk to the mother and child.

A compelling argument

When thinking about whether ultrasound is harmful to the fetus, it is worth taking into account how the child directly behaves during the procedure. For many women, the baby’s reaction in this matter is decisive. For example, during an ultrasound, doctors often note that the embryo begins to actively move, turn away from the sensor or, conversely, open its arms to it. But in fact, this behavior does not mean that ultrasound harms the fetus. The reasons are often hidden in the tense state of the mother herself. Also, the reason may be the tone of the uterus caused by the touch of a cold sensor or gel, pressure on the uterus from a full bladder or banal excitement.

Correct "dosage"

The question of whether ultrasound during pregnancy is harmful to the fetus cannot be answered unequivocally, but doctors still recommend avoiding this type of diagnosis for up to ten weeks. The referral is given by the attending physician from the antenatal clinic who is managing the pregnancy. So, when talking about the possible harm of a research method, it is best to be guided by the phrase “the medicine for poison differs only in dosage.” Still, ultrasound affects tissue and evidence of this is the excitation of nerve fibers that occurs as a reaction to focused ultrasound. But if ultrasound is not recommended in the early stages, then you can be sure of relative safety during examination in the later stages.

Common Myth

Why, despite the apparent safety, many are tormented by the question of whether it is harmful to do an ultrasound during pregnancy? The biggest concern is that ultrasound can cause cancer. Is it so? Proponents of this theory believe that ultrasound causes vibrations of a special frequency that are favorable for the development of tumors. But science has not proven the assumption that cancer has a certain rhythm. Moreover, ultrasound is the main method for diagnosing cancer, especially in early stages.

Another myth concerns that when used frequently, ultrasound destroys tissue. But in reality, the expected negative impact would affect the condition of the skin, which, by the way, is the first to come into contact with the sensor. And in the entire history of the use of ultrasound, there has not been a single case of skin injury.

Is doing it often harmful or beneficial?

If during pregnancy this research method allows you to prevent and treat some pathologies, then maybe it’s worth coming for an ultrasound scan as often as possible? But what about doubts such as whether ultrasound is harmful for early stages? In fact, this method does not have a cumulative effect, and the effect lasts exactly as long as the examination takes place. So, in fact, there are no obvious restrictions on the number procedures undergone, which cannot be said about x-ray examination, for example. But there is no need to “refer” yourself to an ultrasound yourself. Ideally, everything should be done according to the recommendation and prescription of a doctor.

No woman is immune from the occurrence of various pathologies and dangerous conditions during pregnancy. Their diagnosis is important. Timely identification of deviations from the norm allows doctors to resolve important issues regarding the further management of pregnancy and determining delivery tactics. Currently, diagnosis is carried out using ultrasound examinations. On the one hand, scans are necessary, but on the other hand, they are not safe.

The influence of ultrasound on the developing fetus: pros and cons

During pregnancy, all women undergo ultrasonography. Every expectant mother has a question about whether ultrasound is absolutely harmless to her and the fetus. Many people say that ultrasound is safe, because it has long been used in medicine to diagnose pathologies and conditions. However, studies conducted by various specialists, unfortunately, indicate the opposite - that the effect of ultrasound on the fetus may be negative.

Are scans harmful during pregnancy?

The main task of prenatal echography during the period under review is to collect information necessary for effective management of pregnancy and timely adoption of critical measures. Ultrasound allows:

• identify the fertilized egg;
• ensure the viability of the embryo;
• determine the gestation period;
• find out the number of fertilized eggs and confirm or deny a woman’s multiple pregnancy;
• detect gross developmental disorders, chromosomal abnormalities;
• identify pathologies such as polyhydramnios, oligohydramnios;
• find out presentation and determine delivery tactics.

The above list proves the importance of ultrasound, but to date there are some known experiments that have shown the negative effects of ultrasound. How does scanning affect? For example, during an ultrasound examination, as some experts testify, the behavior of the fetus changes.

Of particular note is a study conducted in 1999 by scientists from Dublin. They exposed laboratory mice to low-intensity ultrasound. As a result, the embryos of these animals were more likely to develop cancer in the future.

How does ultrasound affect the embryo?

Experts conducting research to determine the influence of ultrasound claim that scanning a certain area leads to a thermal effect. This means that the temperature in the cells increases by several degrees. Gas bubbles appear, pulsating at an ultrasonic frequency. Their expansion and decrease are noticeable. When the bubbles burst, shock waves are created.

In cells due to the influence of ultrasound:

• the permeability of cytoplasmic membranes increases;
• the ionic composition deviates from the norm;
• the rate of enzymatic reactions changes;
• pyrimidine and puran bases experience changes;
• Cell division slows down.

All of the above sometimes leads to the occurrence of genetic pathologies. The consequences depend on the duration, intensity and frequency of exposure to ultrasound waves. Focused ultrasound is especially dangerous.

Specialists from different countries have proven that ultrasound has a negative effect on the fetal brain. This internal organ is very vulnerable during intrauterine formation. Studies have shown that ultrasound results in some women having left-handed babies. Such babies will face various diseases in the future and experience difficulties in learning.

Statistics prove the negative impact of ultrasound on the brain. Over the past 20 years in America, the number of children diagnosed with autism by doctors has increased. It is a disorder that occurs due to problems with brain development. It is detected before the age of 3. Autism is characterized by speech and motor difficulties, impaired social interaction, restricted interests and repetitive behaviors.

Some experts believe that ultrasound causes particular harm during pregnancy from 5 to 12 weeks. At this time, the placenta is vulnerable. Under the influence of an ultrasonic wave it can be destroyed. As a result of this, a miscarriage will occur. Its probability is 5%. At 8-10 weeks, ultrasound can also destroy fetal skin cells. Once this process begins, the embryo is rejected by the mother's body. The consequence of this is a miscarriage with a probability of 25%.

Statistics also show that children are being born more often who subsequently develop leukemia (a malignant disease of the hematopoietic system) or other types of cancer. Researchers explain this by the influence of ultrasound during intrauterine development. Waves damage DNA. Because of this, a healthy body can no longer develop.

Are frequent scans allowed during pregnancy?

The corresponding order of the Ministry of Health established that every woman during pregnancy must undergo 3 mandatory ultrasound examinations. This number of ultrasound scans is considered safe for the expectant mother and fetus and sufficient for the timely detection of various pathologies and dangerous conditions.

Some women undergo 4 or 5 diagnostic procedures. Is frequent ultrasound harmful to a child? The answer to this question is contained in the results of a study conducted by Australian scientists. Experts observed 1,400 women who underwent 5 ultrasound examinations during pregnancy. All of them had lower birth weight babies than mothers who only had one ultrasound scan.

If we analyze the study reviewed, we can understand that frequent ultrasound during pregnancy has a negative impact on the embryo. Despite this, more than 3 ultrasound scans may be performed. Specialists do additional research only if there is evidence and provided that the benefits from the scans will be much greater than the harm caused.

How does 3D ultrasound affect the fetus?

Three-dimensional ultrasound is a new diagnostic method that has emerged thanks to modern computer technology and has been prescribed to pregnant women. It allows you to examine the fetus in detail and identify external developmental defects.

Thanks to 3D ultrasound, it is possible not only to obtain a three-dimensional image, but also to record on electronic media the first movements of the unborn baby. However, this scanning, despite the fact that completely new and improved devices are used, can cause harm at all stages of pregnancy. With this procedure, the strongest effect is on the fetus, so it is recommended to undergo it according to indications.

conclusions

By majority international organizations It was agreed that the use of M- and B-modes in diagnostics is harmless to the woman and the fetus at any week of pregnancy, taking into account the presence of limitations in acoustic power. Doppler and 3D ultrasound are associated with higher energy effects and should therefore only be used when indicated.

It is not recommended that expectant mothers abuse requests to record an image of the fetus on a digital medium, because in this case the duration of the ultrasound increases. The harmful effects of ultrasound may be associated with the following changes:

• disruption of processes occurring in cells;
• leukemia and other types of cancer;
• brain damage;
• speech delay;
• autism syndrome;
• left-handed.

What matters is how much good specialist is the person who performs the scan. In the hands of a doctor with extensive experience, the method in question can be very useful and as safe as possible for the expectant mother and fetus. That is why people performing ultrasound diagnostics must meet the following conditions:

• periodically improve their qualifications after receiving a diploma of higher education;
• learned how to use ultrasound in diagnostics;
• became familiar with safety precautions;
• adhere to diagnostic protocols when pathological changes are detected or suspected.

Thus, ultrasound examination is a very informative procedure. In some cases, this method makes it possible to resolve the issue of the need to terminate a pregnancy due to the discovery of very serious pathologies. However, ultrasound has not only benefits, but also harm. Negative consequences most often arise due to frequent scans and excessively lengthy procedures. The opinion of many researchers is to do ultrasound no more than 3 times during the entire period of pregnancy and no earlier than 12 weeks, when tissue formation begins and internal organs body.

Despite its prevalence and demand, the question of the harmfulness of ultrasound to humans still worries many patients. People undergoing long-term treatment are especially often interested in this.

In some cases, therapy can last for months and requires periodic monitoring and qualitative monitoring of the dynamics of recovery. But isn’t it harmful to do frequent ultrasounds? Doesn’t the procedure pose dangers and health risks? In order to answer this question, it is necessary to turn to scientific research.

Since the advent and rapid popularization of ultrasound, the impact of this diagnostic method on humans has been controversial. Today the situation has not changed radically: some patients are confident in it, while others treat it with at least caution.

The skeptical and often hostile attitude can be explained thanks to the most common myths about this type of diagnostics of the body.

How harmful is ultrasound screening: versions

One of the versions according to which frequent diagnostics is harmful is the following theory. In accordance with it, during the study, ultrasonic vibrations supposedly dangerous to humans emanate from the ultrasound machine.

The resonance caused by the operation of the ultrasound sensor operates at a frequency of about 20 Hz, and this condition is considered a favorable background for the development of malignant processes.

Proponents of this theory are confident: tumors are formed due to increased activity of cancer cells caused by a certain spectrum of vibrational frequencies.

The rhythm of ultrasonic waves sets the rate of replication of cancer cells, i.e. their reproduction. Thus, from this judgment it follows that the rhythm of operation of the ultrasound sensor coincides with the pathological rhythm of malignant cells. However, this version, as well as the confirmation of the rhythm of the cancerous tumor, has no official validity.

To carry out such a survey, we use different kinds sensors, but any of them does not pose a danger to the patient’s health

Why can't ultrasound be done often?

There are other things that are said about whether frequent ultrasounds are harmful.

Often opponents of the study refer to the likelihood of mechanical impact on soft fabrics. They believe that the procedure is destructive in nature due to its ability to affect the organs being examined. In fact, they cannot leave their mark after the procedure. Meanwhile, turning to physics, it is easy to refute unfounded fears.

Frequently undergoing an ultrasound is dangerous - everyone has come across this statement. It is widely believed that this group of patients is more susceptible to negative effects than adults.

In addition, the frequent performance of ultrasound is explained by the supposed accumulating properties of ultrasound. That is, at a certain frequency, the procedure does not pose a threat to the health of a child or adult, but with frequent examinations, a danger arises.

This logic makes sense based on the basic principle of treatment: in small doses the poison is beneficial, in large doses it is harmful. However, it is incorrect to talk about any dosage when comparing ultrasound with. Its actions in no way accumulate in the body and certainly do not poison the body.

Proven safety and benefits of ultrasound diagnostics

Expectant mothers have probably heard about the risk. However, it is impossible to say how justified such fears and concerns are, because first of all, ultrasound makes it possible to determine the following phenomena:

• multiple pregnancy
• location ovum outside the uterus
• placental abruption
• disruptions in the process of formation of the child’s internal organs.

If various functional disorders are suspected, ultrasound is one of the mandatory measures to confirm or exclude pathologies of internal organs:

In particular, the ultrasound waves emitted by the device and the sensor have such an insignificant force that they are not capable of damaging anything, especially the walls of the internal organs.

You can verify the implausibility of versions of ultrasound destruction by examining the integrity of the skin: otherwise, it would be there that the first violations of integrity and a decrease in the local immunity of the epidermis would be noticeable.

Instead of pigmentation, dermatitis and eczema, healthy skin remains on the body after exposure to an ultrasonic sensor, without traces of any negative influence.

Principles of safe ultrasound examination

Speaking about ultrasound as such, it cannot be called an absolutely safe way of influencing the human body.

However, in order to cause Negative consequences influence of ultrasound, completely different, more powerful equipment is needed.

An ordinary ultrasound device and sensor is not capable of having a significant impact on a person. For example, if it were harmful to do it often, their capillaries would burst, because they are so thin and fragile that it is quite easy to damage them. It does not respond to ultrasound or human sensory; during examination, the body does not feel anything.

Specialists who adhere to the main principles of the safe use of ultrasound techniques can be confident in the accuracy of the results and the absence of any side effects at the patient. The main ones are:

• the procedure should be carried out only by professionals, highly specialized specialists familiar with the rules of safe operation and technical characteristics equipment
• it is necessary to take into account possible mechanical and thermal effects of ultrasonic waves
• awareness and knowledge of equipment settings, the ability of a specialist to set the appropriate output power level for a specific diagnosis
• The duration of the procedure should be minimal, but sufficient to make a diagnosis
• The ultrasonic power at the output should not exceed a level sufficient for maximum information content about the condition of the examined object during diagnostics

In addition to the mandatory schedule of procedures, a pregnant woman may be prescribed additional ultrasounds if the life of the fetus is at risk. That is why a pregnant woman can undergo diagnostics as often as the doctor considers it an appropriate decision.

The imaginary cannot be compared with the potential problems that develop as a result of a delayed diagnosis.

The relative youth of the ultrasound type of screening does not indicate that this type of examination of the body has not been studied. The safety of the technique, its non-invasiveness and high level of information content make it possible to classify ultrasound as one of the best and harmless methods.

Recently, there has been a pressing issue regarding whether or not it is harmful to perform an ultrasound during pregnancy. The procedure is not complicated and has serious contraindications, but many women refuse to undergo it. But what is the reason for such categoricalness and is it justified?

Ultrasound examination is not only a popular, but also an accurate method for diagnosing pregnancy. With its help, medical specialists determine the presence of fertilization and the approximate date of the upcoming birth.

The check is necessary because it allows us to detect at an early stage the presence of any abnormalities associated with fetal development or pathologies. In addition, an ultrasound will determine the state of health of the expectant mother.

During pregnancy, 3 planned studies should be carried out. It is better not to exceed the amount, because radiation, although in small doses, affects the development of the baby. If any pathological signs are detected, then an additional ultrasound is necessary to monitor the dynamics of the disorders and avoid negative consequences in the future.

Many women are afraid to do an ultrasound during pregnancy. Whether such a study is harmful or not - no doctor can answer unequivocally.

To minimize doubts, the advantages of the procedure over other diagnostic methods are presented below:

• Only ultrasound radiation can provide complete and accurate information regarding physical condition mother and the development of the baby in her womb;
• the check allows you to thoroughly study the size of a woman’s organs and the correct location of them during pregnancy;
• This is the safest and most painless diagnostic option.

Today, ultrasound radiation is a publicly available study, which is an integral part of monitoring the course of pregnancy.

Indications for ultrasound for pregnant women in the first trimester

Every woman, while carrying a baby in the first trimester, must undergo ultrasound radiation, which is divided into 2 main types.

To understand whether ultrasound during pregnancy is harmful or not, it is worth listening to specialists. They claim that the procedure is safe and necessary, since only with its help can one obtain information about the size and correct ripening of the fetus.

The main indications for an ultrasound scan in the first trimester are:

• establishing the location of the fetal egg, since it can become fixed in the area of ​​the fallopian tubes, which by its nature is an anomaly;
• determining the type of pregnancy - multiple or singleton;
• assessment of the structure and size of the embryo;
• detection of problems, which include the threat of miscarriage, spontaneous abortion of a reversible and irreversible type.

Carrying out an ultrasound in the early stages will also make it possible to detect the formation of pathologies of internal organs (bicornuate uterine septum, neoplasms in the ovarian zone, uterine fibroids, etc.).

Indications for research in the 2nd and 3rd trimesters

The woman will need to undergo ultrasound radiation again at 20-24 weeks of pregnancy, that is, in the second trimester.

During the examination, the doctor will be able to:

The manipulation will not only measure the weight of the unborn baby, but also determine its gender. To obtain information, it is necessary for the embryo to take a position convenient for the doctor, only then will he be able to examine sexual characteristics.

Regarding whether ultrasound is harmful or not during pregnancy in the third trimester, doctors unanimously say that it is not.

Without an ultrasound examination, medical specialists will not be able to prepare a woman for the upcoming birth.

Using the procedure, the doctor receives important information:

• assesses the condition of the amniotic fluid;
• the presence of inherited pathologies of the embryo;
• presence of intrauterine infection;
• an indicator of the speed of blood flow in the umbilical cord area.

When the data on the last point is far from normal, the woman may be referred to premature birth. When hypoxia develops, the child simply does not receive enough oxygen, which can be fatal.

Harm of ultrasound for a child

The manipulation is carried out under radiation, so there is a slight effect on the fetus, since the uterus is a sensitive and delicate organ that comes into tone when exposed external factors. There is nothing dangerous in this process; the only thing that the baby may feel is minor discomfort from its contractions.

Arguments against"

The main opponents of the procedure during pregnancy are employees of the American FDA agency, which controls the quality of medicines and food products. They, together with medical scientists, conducted many tests, during which they tested the effect of ultrasound radiation on the animal’s body.

They also studied the effects of ultrasound during pregnancy. They determined whether it was harmful or not by testing on 100 animals. The influence of radiation has a negative effect on the body.

Manipulation can cause problems:

Scientists highlight one nuance, which lies not in the harm of ultrasonic radiation as such, but in the amount of its use. That is, the procedure is harmless, but in moderation.

Arguments for"

A timely ultrasound allows you to:

Manipulation allows a woman to be confident that her child will be born full and healthy.

At what time and how many times should ultrasound be performed?

Over the entire nine-month period, 3 diagnostics must be carried out:

• at 12 weeks– to exclude the presence of chromosomal pathologies and gross maturation defects;
• at 22 weeks– to study the anatomical structure of each system and organs of the embryo, Special attention focuses on the cardiovascular and central nervous systems;
• at 32 weeks– the last examination, which is carried out immediately before childbirth.

Additionally, at week 18, a woman must undergo biochemical tests, based on the results of which a geneticist will be able to determine the presence of anomalies.

Purpose of ultrasound in early pregnancy

The study is necessary at the initial stage of pregnancy, so that medical specialists can detect problems associated with the development of the fetus. For example, ultrasound can detect a disease such as Down syndrome.

The procedure also detects pathological processes that do not give the child a chance to survive. Therefore, their timely discovery will allow the woman to have an abortion on time.

There are situations when it is necessary to undergo a diagnostic procedure earlier than 12 weeks:

• presence of pain in the lower abdomen;
• the appearance of bloody discharge;
• formation of uterine hypertonicity;
• suspected ectopic pregnancy;
• diagnosing duplication of the uterus or other abnormalities associated with the genital organs;
• formation of tumors in the uterine area.

If the problem is identified in time, it may be possible to eliminate it with medication, taking into account the woman’s situation.

Purpose of ultrasound in late stages

The test is carried out immediately before birth.

It is important because its main task is:

• assessment of uteroplacental and fetoplacental blood flow;
• embryo size parameters;
• the location of the placenta, which determines what type of birth will be carried out - C-section or natural;
• determining the position of the fetus: it must be positioned head down, otherwise surgical intervention (caesarean section) is used so as not to harm the health of the child and mother.

When is an additional ultrasound prescribed?

An ultrasound examination at 34 weeks is not always the last one before childbirth. Because sometimes there is a need for additional examination after 37 weeks.

It is necessary for precise definition presentation of the embryo and its condition, blood flow speed in the placenta and uterus. Also, manipulation is mandatory in case of multiple pregnancy or if the woman in labor is overweight.

Refuting common myths about pregnancy and ultrasound

For a long time, myths about the negative effects of ultrasound radiation confused expectant mothers, who went to the procedure with fear in their eyes. Although today there are many women who, despite denials, stubbornly believe in the harm of the procedure.

• Misconception 1: Ultrasound negatively affects prenatal development.

Today there is no confirmation or refutation of this fact. Medical specialists have conducted studies regarding the harmful effects of radiation on the fetus. They did not use modern equipment, but old devices manufactured back in the 70s.

Experts' opinion. An ultrasound must be done, but no more than 3 times during the entire pregnancy. There are exceptions regarding health problems of the mother or child. Then additional ultrasound examination is permissible. However, it is still important not to overdo the diagnosis at any stage.

It cannot be said with certainty that the procedure is neutral in the first trimester, because it involves the use of an ultrasound wave. As for the prenatal stage, diagnosis will not harm the embryo, because its vital systems are already developed and are able to withstand the load created.

• Misconception 2: Ultrasound radiation can change DNA.

It is erroneous to say that ultrasound affects the genome and leads to the emergence of a mutation process. That is, ultrasound affects the occurrence of mechanical vibrations and deforms DNA fields, which ultimately causes a disruption in the functioning of the inheritance program and the child may be born unhealthy.

The founder of this theory is Garyaev. This is refuted by repeated studies that were carried out on pregnant mice. Even a half-hour exposure to radiation had no effect on either the mouse or its fetus.

Experts' opinion. To understand whether ultrasound is harmful or not during pregnancy, it should be noted that radiation promotes mechanical vibration of tissues, creating bubbles filled with gas and heat. Their structural disruption is guaranteed to lead to cell damage.

Modern medicine uses special equipment that reduces the impact of ultrasound many times, so it is absolutely safe. But it's better not to additional examinations, especially in the first trimester, since during this period the fetus is susceptible to external stimuli.

• Misconception 3: The fetus becomes ill from ultrasound radiation.

Each baby behaves differently: some sit quietly, while others respond expressively. Opponents of ultrasound are of the opinion that in this way the child reacts to the dangerous effects of radiation. But supporters find another explanation for the baby’s behavior: he simply feels the touch of the sensor and the mother’s excitement.

Experts' opinion.

The causes of hypertonicity and spontaneous contractions can be:

Misconception 4: Ultrasound is not natural.

This is what proponents of “natural cultivation” say. This opinion is subjective, anyone can adhere to it. Experts assess the situation from a practical perspective - the examination allows you to increase the likelihood of having a healthy child.

Misconception 5: Ultrasound is performed for statistics.

To some extent the assumption is correct, because screenings provide important information to anatomy, genetics and medicine. It cannot be ruled out that even the most qualified doctor can make a mistake and not notice disturbances in the development and condition of the embryo. With the help of ultrasound, you can avoid such mistakes and detect them in time.

What do the experts say?

Multiple studies have proven the safety of the “3-times” procedure. But there is no need to overdo it with its use. If absolutely necessary, it is permissible to carry out an additional 1-2 diagnostic procedures, but no more. Ultrasound is a technique that gives the most accurate and truthful results, so it is wrong to dispute the need for it.

An ultrasound performed 5-6 weeks before birth allows one to identify delays in the baby’s development and promptly complete a course of supportive therapy and eliminate pathological abnormalities.

Each future mom must independently determine whether it is harmful or not to conduct an ultrasound during pregnancy. You should not listen to the opinions of the authors of glossy magazines; it is better to completely trust medical specialists who have education and considerable experience behind them. Today, ultrasound examination is an opportunity to increase the likelihood of having a healthy baby.

Video: Ultrasound during pregnancy

Is ultrasound safe during pregnancy?

Harm from ultrasound to the fetus:

The optimal monitoring of fetal development during pregnancy is ultrasound diagnostics. During the gestation period, each woman will have to undergo three planned studies. However, in cases of severe or multiple pregnancies, the number of diagnostic procedures increases, and then the expectant mother begins to worry: is ultrasound during pregnancy harmful to the fetus?

Ultrasound is a special study based on the reflective properties of high-frequency sound waves. Ultrasound during pregnancy is extremely important, as it allows you to assess the development of the fetus inside the womb and see gross defects in the early stages. Three routine examinations are carried out at the 12th, 22nd and 32nd weeks of pregnancy.

In cases of suspected multiple or ectopic pregnancy, it is mandatory to prescribe a diagnosis when registering at the antenatal clinic. The examination is carried out through the peritoneal wall; transvaginal ultrasound is not recommended. The procedure can be prescribed as early as the 4-5th obstetric week of embryo development, after the appearance positive tests and the corresponding picture when examined by a gynecologist. The harm of ultrasound during pregnancy is minimal, unborn child does not suffer, a pregnant woman should not worry. The next study is carried out at the end of the first trimester at 11-12 weeks of pregnancy.

There are situations when an emergency unscheduled examination is prescribed. Ultrasound during pregnancy is done when:

• insufficient growth of the uterus;
• signs of placental abruption;
• risk of ectopic pregnancy.

The expectant mother should not worry about whether or not to conduct research. To the question: is ultrasound harmful during pregnancy, doctors give a negative answer. Ultrasonic waves do not cause damage to the fetus, they do not contain harmful radiation and do not affect the condition of the internal organs of the mother and child.

Routine diagnostics: 1st and 2nd trimester

The first screening is carried out at the 12th week of pregnancy. Ultrasound in early pregnancy shows:

• correct development of the embryo;
• location of the fertilized egg;
• heart rate;
• possible risks of pregnancy;
• exact timing of pregnancy;
• size of the collar space (violations are characterized by serious pathologies).

The harm of the study is negative. The embryo continues to develop and the placenta is formed. An increase in uterine tone after the procedure is rarely recorded, but this is more likely a consequence of the pregnant woman’s nervous tension than the diagnosis itself.

• establish the exact size of the fetus;
• determine defects in the development of the cardiovascular system and the condition of internal organs;
• exclude genetic pathologies;
• assess the development of the placental barrier;
• determine the amount of amniotic fluid;
• determine fetal presentation;
• evaluate the cervix;
• determine the gender of the unborn baby.

After the second screening, the woman knows whether the fetus is developing normally or if there are some defects. In this case, there is the possibility of timely consultation with specialists to choose the method of delivery and the need for postpartum surgical or medicinal intervention to preserve the life and health of the baby.

Is ultrasound harmful to the fetus at the time of its formation? No! Moreover, if gross defects are detected that cause the death of the child, the woman will be offered an artificial termination of pregnancy or additional tests will be prescribed.

Doppler studies are not recommended before the 30th week. Its negative impact on the development of the fetal nervous system has not been proven, but doctors do not conduct this type of diagnosis due to theoretically possible risks. Some experts believe that this is even dangerous. An exception is when it is necessary to monitor blood flow if there is a suspicion of impaired access of nutrients to the placenta.

Ultrasound with Dopplerography

Doppler ultrasound is performed after the 30th week. By this time, all organ systems have already been formed, therefore the use of too powerful ultrasonic waves does not harm the child. However, supporters of minimal intervention in the body of a pregnant woman insist on performing Doppler only when indicated.

The third (final) ultrasound examination reveals:

• state of intrauterine development of the fetus;
• degree of maturity of the placenta;
• presentation (as a rule, it will not change until the moment of delivery);
• the presence of entanglement;
• motor activity;
• heart rate.

Ultrasound determines the tactics of managing a pregnant woman in the last trimester, the method of delivery, the need for drug therapy or a special diet (for a particularly large fetus). Based on the data obtained, a decision is made on the early placement of the woman in labor in the hospital maternity ward for full-term childbearing and enhanced monitoring by specialists.

It is strictly not recommended to carry out 3D and 4D diagnostics for pregnant women, as well as video recording of the procedure. Despite the newness of these types of studies, there is a suspicion that such ultrasound for the fetus can be dangerous. It can be carried out once during the 30-40th week of pregnancy and as an emergency measure for medical reasons.

Unscheduled ultrasound examinations

Pregnancy does not always go without complications. At the slightest risk of interruption or deviations in indicators, the doctor prescribes additional diagnostics.

An unscheduled ultrasound during pregnancy should be done if:

• cramping pain in the lower abdomen;
• the appearance of bloody discharge on underwear;
• possible high or low water levels;
• past illness;
• lack of movements in the second half of pregnancy;
• low location of the placenta;
• pathologically short cervix;
• gestosis.

More frequent examinations are carried out if there is a history of missed or interrupted pregnancies, poor genetic screening, or the risk of hereditary diseases. Also, the frequency of ultrasound is increased during multiple pregnancies and after IVF. In these cases, the question: how harmful is ultrasound during pregnancy does not arise. The benefit of the data obtained is in any case higher.

If desired by a pregnant woman or her attending physician, the test can be performed at each mandatory examination. It has been proven that even frequent ultrasound does not affect the fetus and makes it possible to track the slightest changes in the development of the child.

Possible risks of ultrasound

Is ultrasound during pregnancy harmful to the fetus? There is no exact answer to this question. Opinions vary. A group of Swedish scientists even conducted a special study, during which minor disturbances in the functioning of the brain were identified in that category of people who underwent frequent intrauterine diagnostics, which stated that ultrasound is harmful. However, their words were not supported by evidence.

The different course of pregnancy in women, drug therapy, lifestyle, and the need for hormonal therapy can lead to significant distortions in statistics and do not allow adequate statistical studies.

And yet, doctors insist that the effect of ultrasound on the fetus is minimal and does not have negative consequences:

1. Ultrasound examination is carried out at a minimum power of sound waves. In this form, they cannot have a destructive effect on the nerve endings and lead to deviations. However, screening at less than 12 weeks is recommended for medical reasons only. The question of whether ultrasound is harmful for a child during the formation of the nervous system and brain still remains open.
2. Diagnostics takes less than 10 minutes, the device produces short pulses (their total length for the entire procedure is several seconds). During such a short period of action, gross violations are impossible, but it is not recommended to be in the zone of constant exposure to ultrasound.
3. Possible hyperactive behavior of the child or increased tone of the uterus during or after an ultrasound is more related to the increased emotional background of the pregnant woman than to the diagnosis being carried out. Therefore, on the couch, you should relax as much as possible and not worry about anything.

How many times to conduct an ultrasound examination and whether it is necessary is decided by the attending physician. A woman has the right to refuse an ultrasound procedure for her own reasons, but modern medicine strongly recommends not to do this. Thanks to accurate and timely diagnosis, it is possible to timely assess any abnormalities during pregnancy, reduce negative risks to an absolute minimum and give birth to healthy children.