Lower back pain in 38 weeks of pregnancy is not suitable for medication, not to mention the possibility of surgical treatment. Usually advise pregnant women to reduce activities, avoid standing and sitting for a long time, avoid lifting heavy objects, eat more food rich in calcium and protein, and at the same time give the lumbar localized hot compresses, baking lamps or massage therapy, most of the pregnant women will have different degrees of relief after conservative treatment. Lumbar pain in the 38th week of pregnancy is often due to the increasing uterus and fetus pressure on the lumbosacral region, making the center of gravity of the pregnant woman shift forward, the patient in order to maintain the balance of the body, the lumbar region of the front, thus aggravating the discomfort of the small joints and muscles of the lumbar region. After delivery, the patient’s body shape returns to normal, and this kind of lumbar pain of pregnant women will be improved very quickly.