Miscarriage is a rather severe multifactorial pathology. Therefore, it is not easy to predict the outcome of subsequent pregnancies. First of all, among the complications, one can note a pronounced depressive syndrome in a woman who has lost her desired pregnancy. Particularly severe psycho-emotional state in patients suffering from habitual miscarriage.
If an out-of-hospital spontaneous miscarriage occurs, and no follow-up and treatment is carried out, the woman may develop pelvic inflammatory disease, since the remnants of the ovum are an excellent breeding ground for microorganisms.
The formation of isthmic-cervical insufficiency (ICI) can also be considered a complication of an interrupted pregnancy. This is an anatomical or functional defect in the circular muscles of the cervix, which subsequently leads to the opening of the cervix, prolapse of the ovum (protrusion into the cervix) and habitual loss of pregnancy.
In the case of a frozen pregnancy, when the fetus dies and stays inside the uterus for a long time (over 4-6 weeks), especially in the 2nd trimester, bleeding may occur due to the development of DIC (disseminated intravascular coagulation) - a condition characterized by disorders in the blood coagulation system. In this case, depending on the stage of DIC, the formation of multiple blood clots in the vessels of various organs occurs, or bleeding occurs.
A pregnant woman with a history of miscarriage belongs to the high risk group for preterm birth.
A threat to a woman's life in case of miscarriage exists only in case of massive bleeding and hemorrhagic shock (a critical condition caused by acute rapid single blood loss) or in case of infectious complications. When the remains of the fetal egg are infected, inflammatory diseases of the pelvic organs may develop, such as endometritis (inflammation of the uterus), parametritis (inflammation of the periuterine tissue), peritonitis (inflammation of the peritoneum), complicated by blood poisoning (sepsis) and infectious toxic shock.