? High-risk pregnant women are divided into five categories, one is older and younger, that is, pregnant women over 35 years old or 18 years old. In recent years, there are more and more elderly primiparas, mostly remarried women, wealthy women or professional women with high work pressure. The oldest woman in obstetrics in Shanxi Maternal and Child Health Hospital is 49 years old. After the age of 30, the physiological function of women tends to decline, the ovarian function and uterine elasticity are not very good, the fetus is prone to deformity, and the probability of pregnancy complications increases. Once you become an elderly woman, you must go to a general hospital for labor and follow the doctor's advice.

? Second, pregnant women with poor birth history, that is, pregnant women who have had caesarean section before and have experienced stillbirth and fetal abnormalities.

Third, high-risk pregnancy, with complications such as heart disease, hepatitis B, diabetes and anemia, or complications such as hypertension and oligohydramnios caused by pregnancy. Women with these diseases should go to the hospital first, and the doctor should advise whether they can get pregnant or continue to get pregnant. Due to the unreasonable diet structure and the compensatory pressure of family members after pregnancy, pregnant women gain too much weight and the fetus is too large, which is easy to cause dystocia, postpartum hemorrhage of pregnant women and birth injury of children. If pregnant women have diabetes, it is easy to cause stillbirth and miscarriage, and the child may be accompanied by hypoglycemia and other defects after birth. Pregnancy-induced hypertension syndrome (PIH) is more common in elderly pregnant women, which is also harmful to health. If the mother's blood pressure is high during pregnancy, the fetus will suffer from hypoxia, light weight and weak body.

Fourth, careless medication and exposure to radiation and other toxic and harmful places in the first trimester. Most drugs should be used with caution or prohibited by pregnant women. Even if it is a minor illness such as a cold, pregnant women must go to a professional institution. Self-medication is prohibited to avoid damaging the fetus.

? The fifth is ectopic pregnancy. Many women use pregnancy test paper to detect their pregnancy, and then prepare for full-term delivery with peace of mind. In fact, this is quite dangerous, because the test paper can not distinguish between normal pregnancy and abnormal pregnancy. If it is ectopic pregnancy, failure to operate in time may lead to tubal rupture, which may be life-threatening. Therefore, even if the pregnancy test paper is positive, you should go to the hospital for further examination in time.