晚期流产症状有哪些?What does the symptom of late miscarriages have?
Cervical relaxation is manifested in the middle and late stages of pregnancy. The fetus grows, amniotic fluid increases, the pressure in the uterine cavity increases, the fetal sac protrudes to the cervix, and the cervix tube gradually shrinks and expands. The patient has no conscious symptoms. Once the fetal membrane is ruptured, the fetus is discharged immediately.
The maternal and infant blood type difference is the same blood type immune disease that occurs between the pregnant woman and the fetus due to the blood type difference. The common ABO blood type system and the Rh blood type system can cause late miscarriagess such as fetal edema, jaundice, anemia, premature delivery, and neonatal hemolysis. About 20-25 % of all pregnancies are ABO blood types, and only 2-2 .5 ‰ are actually hemolytic.