Is there a risk of abortion?

IVF, like normal pregnancy, carries the risk of miscarriage. Abortion is defined as termination of pregnancy when the pregnancy is less than 28 weeks and the child weighs less than one kilogram. Abortion is related to many factors. If the embryo quality is not good and the chromosomes are abnormal, the embryo is generally not easy to implant, and even if it is implanted, it is easy to abort. Abortion and uterine environment are also related, if there are septate uterus, unicornuate uterus and other uterine abnormalities, or there are uterine adhesions, endometrial hyperplasia, endometrial polyps and other lesions, are easy to cause abortion; endocrine abnormalities can also cause abortion, such as thyroid anti-hyperfunction, hypothyroidism, prolactin secretion increased, luteal insufficiency, etc.; autoimmune diseases or blocked antibody production insufficient women are also easy to abort; Because IVF babies are born just like normal pregnancies, there is also a risk of miscarriage.