Selective feticide consists of the reduction of one or more fetuses of a multiple pregnancy due to genetic anomalies or congenital malformations identified in ultrasounds or tests such as amniocentesis.
The most common cases are those of selective twin feticide, in which the sick fetus is removed and the healthy fetus is allowed to continue its development.
In contrast to embryo reduction, selective fetal reduction is performed later in pregnancy, at the end of the second trimester or beginning of the third trimester, when the parents have obtained the results of all prenatal diagnostic tests. Another difference is the reason for the decision to eliminate the fetus, since in selective feticide the aim is to avoid the birth of a sick baby.
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