When a pregnant woman is between 28 and 37 weeks pregnant, giving birth to a fetus is considered premature birth. These live born babies can be called premature babies. Premature babies have many immature organs and poor adaptability, making them prone to death in the neonatal period. Therefore, some pregnant women want to know why some pregnant women give birth prematurely?
There are many reasons for premature birth in pregnant women, and chorionic and amniotic membrane infection is an important cause of premature birth. chorionic and amniotic membrane infection is due to the entry of external microorganisms into the vagina, and a small portion may belong to intrauterine infection. If a pregnant woman has twins or multiple pregnancies, it will cause excessive amniotic fluid volume, leading to increased intrauterine pressure and premature delivery of the fetus.
If there is passive dilation of the cervical opening in mid pregnancy, it can cause the amniotic sac to protrude towards the cervical canal, coupled with changes in tension leading to rupture of the membranes, resulting in premature rupture of the membranes and premature birth. If the pregnant woman has uterine malformation due to poor uterine development, it can increase the possibility of premature birth in late pregnancy.
In addition, preterm delivery of pregnant women is related to pregnancy complications (threatened abortion, cholestasis of pregnancy syndrome, threatened preterm delivery, premature rupture of membranes), pregnancy complications (pregnancy with hypertension, diabetes, heart disease, anemia, hepatitis, acute appendicitis, chronic nephritis, osteomalacia), overwork of pregnant women during pregnancy, poor living and eating habits, etc.
