What are the triggering factors of threatened abortion?

What are the predisposing factors of threatened abortion? If a pregnant woman has a small amount of vaginal bleeding, followed by paroxysmal lower abdominal pain or back pain, it must be taken seriously. It may be a sign of threatened abortion. There are many reasons for threatened abortion. The following is a detailed introduction to the predisposing factors of threatened abortion.

1. History of induced abortion and miscarriage: The incidence of miscarriage will increase 10 times for expectant mothers who have a history of induced abortion. The more times of induced abortion, the greater the possibility of miscarriage in the future pregnancy; the incidence of threatened abortion will also increase for those who have a history of artificial abortion, intrauterine contraceptive device and oral contraceptives.

Doctors usually recommend waiting at least a year and a half after an abortion before planning to get pregnant, and at least a year after a medical abortion before getting pregnant. If you take long-acting oral contraceptives, you should stop taking them for 3 to 6 months before planning to get pregnant. After stopping taking short-acting oral contraceptives, you need to resume your menstruation before you can get pregnant.

2. Father factors: If the fertilized egg is abnormal, it will lead to the cause of threatened miscarriage for women. If miscarriage occurs in the first two months of pregnancy, it is usually caused by defects in sperm or eggs. Relevant studies have shown that about 10% to 15% of prospective fathers have a certain amount of bacteria in their semen, which may affect the development of the embryo and eventually lead to miscarriage.

3. Accidental injury: When pregnant women are hit, squeezed, fall, participate in heavy physical labor, do intense sports, undergo abdominal surgery or appendicitis during pregnancy, especially in the early stages of pregnancy, it can also cause uterine contractions and lead to threatened abortion. Excessive tension, anxiety, fear, sadness and other mental trauma can also cause uterine contractions and lead to threatened abortion.

There are many reasons for threatened abortion, the main reason is embryo abnormality caused by genetic factors. If this abnormally developed fetus is born at full term, it will also be deformed or abnormal. In addition, insufficient oxygen supply to the umbilical cord and amniotic fluid disease are also one of the causes of threatened abortion. If the pregnant woman is emotionally unstable or malnourished during pregnancy, it can also cause miscarriage, so everyone should pay more attention to prevention.