Postpartum pain in the middle of the spine can be caused by hormonal changes, ligament inflammation or herniated discs. 1. Hormone level changes: Postpartum pain in the middle of the spine may also be caused by hormone level changes after giving birth. It is recommended to avoid cold labor and prolonged sitting and lying down. Because of the long time posture will form a chronic strain, you can use drugs under the guidance of the doctor, such as diclofenac diethylamide latex. You can also massage to relieve the pain. 2. Ligament inflammation: If the patient has postpartum pain in the middle of the spine, it may also be caused by ligament inflammation. Prolonged bed rest or breastfeeding can cause pulling irritation, which can lead to pain. It is recommended that you can pay attention to rest, minimize the local stimulation, avoid keeping a position for a long time, and avoid getting cold. 3. Lumbar disc herniation: As pregnancy requires the body to lean back, some pregnant women may also experience changes in physiological curvature, which may cause or aggravate the existing lumbar disc herniation. There are many reasons for this symptom, please recommend timely consultation, clear diagnosis and follow the doctor’s instructions to avoid delaying the condition.