Can blastocyst transfer lead to a molar pregnancy?

Generally speaking, blastocyst transfer refers to embryo transfer. After transfer, molar pregnancy usually does not occur; however, if the embryo develops abnormally, a molar pregnancy may develop. The details are as follows:

1. Will not

Embryo transfer involves placing an embryo formed through in vitro fertilization into the woman's uterine cavity, where it subsequently implants, grows, and develops. Prior to in vitro fertilization (IVF) embryo transfer, both partners must undergo comprehensive medical evaluations. If any health abnormalities are detected, appropriate treatments should be administered before transferring the embryo into the uterine cavity. Therefore, after transfer, the likelihood of a healthy woman developing a molar pregnancy is extremely low.

2. May

If embryo transfer fails, it may result in a molar pregnancy. A molar pregnancy occurs when trophoblastic cells of the placental villi proliferate abnormally following conception and the stroma becomes edematous, forming fluid-filled vesicles of varying sizes connected by stalks, resembling grapes. Without timely treatment, this condition may progress to malignant disease, leading to symptoms such as nausea, vomiting, mild abdominal pain, and vaginal spotting or bleeding. If chromosomal abnormalities, suboptimal uterine environment, or abnormal embryonic development occur after embryo transfer, a molar pregnancy may develop.

Therefore, prior to undergoing IVF treatment, couples are advised to receive preconception health screenings to prevent embryo transfer failure due to underlying medical conditions. During the pre-pregnancy period, attention should be paid to nutritional intake, moderate exercise, and avoiding staying up late.