Amniocentesis in pregnancy - indications, contraindications, at what time do

So, let's start with what we'll find out what amniocentesis is. Amniocentesis is a study in which a sample of amniotic fluid is taken from the uterus for laboratory analysis, to check the presence or absence of serious chromosomal abnormalities.

This diagnostic test allows you to reliably identify the pathology, as well as determine the sex of the future baby. So, amniocentesis can detect such abnormalities in the fetus as:

  • Down's syndrome and other chromosomal abnormalities;
  • structural abnormalities in the structure of the fetal organism;
  • hereditary metabolic disorders;
  • the condition of the fetus and the need for postpartum therapy.

Usually, the amniocentesis of pregnant women is prescribed in such cases:

  • if the age of the pregnant woman exceeds 35 years;
  • there are genetic abnormalities in the family;
  • if children with chromosomal abnormalities were already born;
  • the results of the remaining surveys are unsatisfactory.

At what time do the amniocentesis of pregnant women take place?

Amniocentesis of pregnant women is usually conducted between the 15th and 20th week of pregnancy. However, at 12 weeks of pregnancy, it can also be carried out if the life of the fetus depends on the test results. Note that at this time, amniocentesis is performed in extreme cases, since only after the third trimester around the child a sufficient amount of amniotic fluid accumulates.

The doctor can also offer amniocentesis, if the question arises about conducting early deliveries to make sure that the baby's lungs are ready for independent living.

Often, amniocentesis is prescribed to test for infection in the event that premature birth begins or the waters leave earlier.

As for the results of the study, they can be done literally in an hour, if it is a premature birth. However, for all other cases, the results are known 1-2 weeks after the test.

It is important to note that the procedure for amniocentesis, although not very pleasant, but also not terrible. The doctor enters the needle into the uterine cavity through the abdominal wall and lifts a little amniotic fluid. Cells of this fluid are grown under artificial conditions, and the result of the behavior of these cells makes doctors conclude on the condition of the fetus.


As for contraindications, the risk of termination of pregnancy after an amniocentesis in the first trimester of pregnancy is one percent of the 100 possible. In later terms, the risk decreases even more. In some women, after this procedure, slight bloody discharge is observed, so it is better to comply with bed rest until they stop.

But the sharp pains in the abdomen, the alternate feeling of heat and cold can indicate infection with the infection, so you should immediately seek the help of medics.

Based on all of the above, we can conclude that amniocentesis is a study that is prescribed by a doctor. Therefore, if you have any doubts about its necessity, it is better to discuss this problem with your doctor. However, if the specialist insists on amniocentesis, then you should not refuse. After all, in many cases, the result of the test depends on the life of the future baby.

Take care of yourself and be healthy!

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