Precautions before cesarean section are as follows: 1. Before cesarean section, a series of examinations should be done, including maternal temperature, pulse, respiration, blood pressure, past history, current physical examination results, blood type, blood routine, coagulation, liver function, HIV, hepatitis C, syphilis, electrocardiogram, B-ultrasound, etc., to determine the health status of pregnant women and fetuses and whether to breastfeed after delivery. 2. The hospitalization time is determined by the doctor according to the fetal condition, and the hospital is hospitalized for preoperative preparation at the agreed time one day before the operation. 3. Dinner on the eve of operation should be light, and don't eat anything after midnight 12, so as to ensure intestinal cleanliness and reduce intraoperative infection. Do not drink water 6-8 hours before the operation. 4. The number of caesarean sections should generally not exceed 3 times. Precautions after caesarean section: 1, drink plenty of water. Caesarean women should drink more water during confinement. This is not only to prevent constipation, but also conducive to breastfeeding. 2. Care for the wound. Try not to make big moves after delivery. Even when coughing or laughing, hold down the wound with your hands or hold down your stomach with a pillow, and the pain will be relieved. In particular, we should take good care of the wound to prevent infection. If you find signs of fever, redness and swelling, you should see a doctor immediately. 3. Observe lochia carefully. There will be a lot of vaginal secretions after delivery. But as time goes on, the number of lochia will decrease. The color should gradually change from bright red to pink, then yellow and white. Careful investigation of lochia is a necessary course for women who have caesarean section. If you find lochia abnormal, you should see a doctor immediately. 4. Dress loosely. Mothers should choose a larger size underwear with straps or boxers. 5. You can do moderate exercise. 6 ~ 8 weeks after operation, you can start to do some moderate exercise, but you must get the doctor's consent before you can do it. It may take several months to get back to the original physical condition. 6, postpartum should be contraception. If you feel good after delivery, you can resume your sexual life in 4 ~ 6 weeks. But women who have caesarean section are not suitable for immediate pregnancy. Therefore, if you want to have sex after childbirth, you must take contraceptive measures.