The severe back pain after cesarean section may be caused by anesthetic factors, lumbar muscle strain, lumbar spine disease and other reasons 1. Anesthesia factor: cesarean section generally choose epidural anesthesia, is a kind of anesthesia in the lumbar puncture, after puncture may damage the lumbar vertebrae, lumbar muscle tissues around the lumbar region, after cesarean section there will be back pain performance. 2. Lumbar muscle strain: not paying attention to rest after cesarean section, often holding the baby may increase the burden on the waist, causing lumbar muscle strain, which will also show symptoms of lumbar pain after cesarean section. 3. Lumbar spine disease: mothers with lumbar spine disease, such as lumbar disc herniation, the nucleus pulposus of the lumbar disc protrudes and then pushes up the posterior longitudinal ligament, and in serious cases, it breaks through the posterior longitudinal ligament, which causes inflammation, and then the symptom of lumbar pain will appear. There are more reasons for back pain after cesarean section, and it is recommended to consult a doctor in time if it is serious.