In vitro fertilization and twin pregnancy
In vitro fertilization is one of the assisted reproduction techniques with the highest percentage of probability of achieving a pregnancy with non-identical twins or twins. In the world, approximately 60% of twin pregnancies originate thanks to in vitro fertilization.
It should be noted that when this type of pregnancy occurs after in vitro fertilization, it is usually bizygotic twins or twins and not identical or monozygotic twins.
These are two separate embryos that developed in the same pregnancy, that is, twins that are born from two different eggs and two different sperm, as a result they do not necessarily have the same sex and do not look like each other.
For its part, when we talk about identical twins, it refers to a single embryo that during the first phase of cell division has separated into two parts, forming two identical embryos, that is, these babies will have the same genetic information, which will make them physically similar. .
Treatment of the in vitro fertilization It initially consists of ovarian stimulation in which the woman is given hormonal medication so that she produces a greater number of eggs that will be extracted by follicular puncture, which will allow obtaining a greater number of embryos during fertilization in the laboratory. which will be implanted in the uterus of the patient who will choose the number of embryos to transfer, taking into account the recommendations of the medical team and laboratory.