Abstract

The determination of fetal gender is done for various reasons, including medical reasons such as the diagnosis of sexually transmitted diseases or social causes such as purchases for each gender and the change in the place of residence of the parents. As some of the embryonic diseases are sexually related, the early detection of fetal sex allows parents to make appropriate genetic counselling. If one of the parents or both of them has a definite disease, they can have an early warning about the disease in their fetus, and thus they will be able to decide early on for that fetus. Clinical value is the determination of fetal sex in deciding whether or not to perform prenatal invasive tests (amniocentesis and patchy sampling), because invasive tests are required only in pregnancies that are fetal males. The studies that have been done so far confirm that the best results are obtained in diagnosing fetal sex after 12 weeks of gestation, as a result, invasive tests for the diagnosis of sexually transmitted diseases should only be performed after 12 weeks, because before that the diagnosis of fetal sex is unreliable.