After cesarean delivery, women’s back is very painful at night can be relieved by keeping warm, massage, calcium supplement, and combining work and rest. 1. After cesarean delivery, women should pay extra attention to the warmth of the waist and abdomen to avoid the pain of the back increasing at night due to cold. Hot compresses can be used to improve blood circulation in the lower back and relieve pain. 2. Appropriate massage of the lower back has the effect of improving local blood circulation, which can significantly relieve the symptoms of back pain at night. 3. Many women’s back pain after cesarean section is related to calcium deficiency. Eating more calcium-rich foods and sunbathing more often can relieve the symptoms of back pain at night. 4. After cesarean delivery, women should pay attention to resting more and do less bending movements, which can reduce the back pain symptoms at night.