Back pain after giving birth to a baby may be caused by cold, lumbar fasciitis, lumbar intervertebral disc herniation, etc. It is recommended to give warmth or localized hot compresses, massages, medication, surgical treatment, etc. to help ease the pain. 1. Cold: After giving birth to a woman, due to the decline in resistance, the body is very easy to get cold and lead to lumbosacral pain. At this time, you need to pay attention to warmth, wear more clothes, and change clothes as soon as possible if you sweat a lot to avoid getting cold. 2. Lumbar muscular meningitis: maternal friends in the postpartum period if too tired, long-term breastfeeding to maintain a fixed position, it is easy to cause lumbar fasciitis occurs, at this time it is easy to lead to maternal lumbar pain and discomfort symptoms. Can be appropriate to give lumbar massage and infrared light irradiation, hot compresses to help promote local blood circulation, relieve pain. 3. Lumbar intervertebral disc herniation: Lumbar intervertebral disc herniation can cause lumbosacral pain, even with one side of the lower limbs pain or nervousness and other symptoms. Under the guidance of the doctor to give local massage and physical therapy to help recovery; severe pain should be treated with celecoxib capsules, and severe cases should be treated with surgery. When in the postpartum if the back pain, must be early to the hospital, early identification of the cause and early treatment.