In this study we will carry out a series of tests to help us determine if there are genetics or coagulation factors, among others, which prevent the embryo from implanting in the uterus, or which prevent an evolutionary pregnancy.

Variants in genes that intervene in the proper implantation of the embryo and in the development of pregnancy, thrombotic risk, immunological factors and endometrial receptivity are analyzed.

Repeated miscarriages are considered when at least three pregnancies have ended in a pregnancy loss.

We refer to implantation failures when a patient has not achieved pregnancy after several good quality embryo transfers.