Cesarean sections are usually safe and do not cause many illnesses. Uterine bleeding, amniotic fluid embolism, anesthesia complications, and infected adhesions may occur due to improper surgical operation and other factors, but not always. 1. Uterine bleeding: Caesarean section can lead to weakening of uterine contraction, which is easy to cause increased bleeding after operation. After cesarean section, you should rest more and do not exercise strenuously. 2. Amniotic fluid embolism: amniotic fluid can enter the blood circulation during cesarean section, causing amniotic fluid embolism, which can be life-threatening. 3. Anesthesia complications: C-section requires the use of anesthesia, and people who are allergic to anesthesia may have an allergic reaction. The anesthesia process may damage the nerves, causing postoperative pain, and may also damage the bladder and ureter. 4. Infection and adhesion: Pathogen infection after cesarean section can cause urethritis, endometritis, incision infection and other diseases. Pregnant women need to go to a regular hospital to do cesarean section, cesarean section during the process of any physical discomfort to contact the attending physician in a timely manner, under the guidance of the physician to adjust or treatment.