One of the problems of in vitro fertilization is that it can increase the risk of thrombotic problems after the birth of the child. A recent study (Human Reproduction 29; 611-617,2014) appears to confirm this, since the incidence of thrombosis was 27.9 per 10,000 pregnancies in the case of in vitro fertilization and 17.5 per 10,000 in the control group. … Leer más.