The causes of postpartum back pain symptoms are more: 1, the mother in the postpartum long time sedentary, lack of necessary physical activities, resulting in chronic strain on the muscles of the lower back and cause back pain. 2, in pregnancy due to excessive growth of the uterus, the abdomen forward bulge, so that the spinal part of the spine to withstand excessive pressure, resulting in intervertebral disc lesions caused by the postpartum symptoms of back pain. 3, the body of the lack of calcium in the period of gestation or after birth, but not timely supplementation, resulting in osteoporosis and the emergence of back pain. The lack of calcium in the body during pregnancy or postpartum and the lack of timely supplementation, resulting in osteoporosis and low back pain. 4, do not pay attention to warmth after delivery, cold stimulation can also cause low back pain symptoms. 5, the puerperium when personal hygiene habits are poor, leading to the invasion of pathogenic microorganisms infected, resulting in pelvic inflammatory disease, can cause postpartum low back pain.