What is the etiology of late abortion? Professor Chenfenglin of Beijing Antai Hospital pointed out that there are four main reasons for late abortion.
1) Uterine lesions: uterine malformations and mediastinal uterus, double-horned uterus, uterine dysplasia, uterine adhesion, submucosal uterine myoma, can be due to insufficient placenta blood supply, affecting fetal growth and development leading to abortion. Lax or partial cervical resection can make the fetal membrane easily broken, resulting in late abortion;
(2) Systemic diseases High fever during pregnancy can cause uterine contractions and miscarriage. Bacterial toxins or viruses can also enter the fetal cycle through the placenta, resulting in fetal death. Chronic diseases such as severe anemia or heart failure can also cause abortion due to severe hypoxia in the fetus.
(3) In the middle of the pregnancy, due to abdominal uplift, uterine contractions may be caused by trauma or surgery, resulting in late abortion;
(4) The mother's blood type is different, allowing the fetal red blood cells to condense and be destroyed to produce coagulation. Severe causes the foetus to die, leading to late abortion