Advice 1: What is the probability of error in determining sex of the baby by ultrasound

Many pregnant women perceive ultrasound only as a way to determine the sex of their unborn child. Typically, ultrasound technician are already at the first visit, the patient tries to satisfy her request. He is intently looking out what's hiding between the legs from an unborn baby. However, not everyone knows that in making a physician a verdict likely the possibility of error.

What is the probability of error in determining sex of the baby by ultrasound

How accurate is the method of ultrasound to determine the sex

Unfortunately, an absolute guarantee that you have a baby that is the gender that predicted doctor does not exist. The results of studies of physicians, method of ultrasound to determine the sex of the baby can be truthful no more than 90%. Errors do exist, however, they have a logical explanation.

The main reasons for the ultrasound can be wrong

There are several main reasons because of which the ultrasound for gender determination can be wrong. These include:
- too small term of pregnancy;
- the last weeks of pregnancy;
equipment ultrasound;
- the experience and expertise of the ultrasound technician;
- reasons that depend on the child.

So, the first reason is the early pregnancy. The first ultrasound is usually performed at 10-13 weeks of pregnancy. While it is prescribed, and all other study - not to determine the sex of the baby. The doctors there are more weighty reasons "to Shine through" just a little fruit at this time. And as a pregnant woman can't wait to see what color she buy vests, even in such a small period of time the doctor is trying to determine the sex of the unborn child. And how do you think he can see?
In the early period of pregnancy the fetus is still so small that when determining its sex is easy to make a mistake.

It should be borne in mind that the genitals are still very tiny man begin to form for another 5-6 weeks pregnant, and this process lasts up to 12 weeks. The 12-13 week period of pregnancy his genitals already are in some way different, but still very slightly.

The second reason is last week of pregnancy. It would seem, is the third of the mandatory ultrasound the doctor will be able to answer accurately, exactly who soon will be born. But it is not. On the contrary, at this period of pregnancy to determine the sex of the baby even harder. Although the organs of the baby is already well formed, the fetus is now too big. And because of their large size, he has so conveniently located in the womb, that sometimes the doctor is difficult to see his primary sexual characteristics.
Sex determination using ultrasound visualization is based on the girls labia and in boys - penis and scrotum.

The following reasons, which may occur due to error in determining sex of the baby - ultrasound apparatus and so-called human factor. More often than not is err not very experienced ultrasound specialists. However, if the doctor has long worked with pregnant women, such errors should not occur. It is also worth considering the quality of the equipment. If ultrasound technology is already old, it does not usually is reliable, but the new, modern machines give more accurate results.

Finally, much depends on the baby. Sometimes the girls may experience swelling of the labia (this is not a pathology and it completely is), which in this case resemble a scrotum. The boy can squeeze the legs, thereby hiding their genitals, and become like a girl. Also could be mistaken for a penis finger girl and introduce parents astray.

Advice 2 : Why ultrasound is mistaken in determining the sex of the child

Modern ultrasound examination is considered to be safe, accessible and sufficiently informative method of diagnosis in different areas of medicine, such as obstetrics and gynecology.
Why ultrasound is mistaken in determining the sex of the child
Determining the sex of the baby using ultrasound in medicine is considered to be the most accurate way. During pregnancy, the ultrasound procedure is performed at least three times in the first trimester, the second and third. Each time the estimated state of development of the fetus. At the age of twenty-two weeks the child has already established enough privates to conducting the study, the doctor was able to determine the sex.
Some of the moms complain that on the ultrasound they wrongly identified the sex of a baby. Sometimes it happens – the procedure is the same for all its virtues, can not show all with absolute precision. More is not always doctor performing the ultrasound, can all be considered. The child in the womb is lying completely still. Most toddlers touch sensor to the abdomen of the mother really do not like, they begin to toss and turn, hiding his private parts. The smaller the period on which the procedure is carried out, the probability of error is more.
The sex of the baby is determined at conception, but the genitals will begin to form no earlier than in 5-7 weeks. On small term of pregnancy to determine the sex of the baby is not possible. In the second trimester the fetus is more active and is able to turn to the researcher anything. But keep in mind that at a certain position, the baby may be the labia girls to be over the testicles of a boy and Vice versa. In the last trimester, when the baby was old enough, he completely takes the uterus that also complicates the research process.
A lot in determining the sex of the child will depend on what is the quality of the ultrasound equipment and the skill of the doctor performing the procedure. If the research is conducted on the old machine, the probability of failures in the inspection process. The accuracy of the study depends on the care of a physician, who with the help of the sensor reads the screen information. For example, a physician with extensive experience of such studies, is able to determine the sex of the child at a sufficiently early stage of pregnancy.
The probability of error in determining the sex of baby in ultrasound is about 10%. In a widely publicized reliability of the procedure should not yet rely on its results. If the doctor is not convinced of the correctness of the data, it often is not possible to reassure future parents and to tell them the sex of the baby. For some couples it is so important that at birth the "wrong sex" women fall into postpartum depression.
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