Low back pain is more common in women because of the physiological characteristics of menstruation, pregnancy, childbirth and breastfeeding. In addition, menstrual disorders, hypospadias, pregnancy disorders, gynecological disorders and post-abortion conditions also cause low back pain. The common causes of clinical manifestations are: 1. abnormal uterine position: such as uterine position anteversion, retroflexion, prolapse, etc., resulting in low back pain. There is no special treatment for this kind of low back pain. Correction of uterine prolapse and change of position can relieve the symptoms. 2, pelvic inflammatory disease: such as patients suffering from chronic adnexitis, pelvic inflammatory disease, pelvic connective tissue inflammation, can be stimulated by inflammation and lumbago. With the improvement or cure of the primary disease, the symptoms of lumbago can gradually become lighter and disappear. 3.Pelvic tumor: Patients with uterine fibroids, cervical cancer, ovarian cysts, for example, can suffer from low back pain due to tumor compression of nerves or cancer cells infiltrating the pelvic connective tissue. Such patients often have extensive pain throughout the abdomen when they have low back pain, and drug treatment is often ineffective. 4.Sacrospinous ligament relaxation: After pregnancy, the increase of fetus and lumbar support force may lead to the relaxation of sacrospinous ligament and compression of pelvic nerves and blood vessels and cause lumbago. This kind of lumbago can gradually disappear with the recovery of lumbar muscle strength after delivery. 5, lumbar muscle strain: excessive physical fatigue, abnormal standing and sitting posture, as well as too tightly girded waist, etc., can lead to lumbar muscle strain and cause lumbago. Therefore, this type of patients should pay attention to the combination of work and rest, and often move the waist, so that the lumbar muscle can be stretched. 6, internal injury factors: too much childbirth, abortion and indiscipline in intercourse can cause damage to the kidney qi and lead to lumbago. 7, external factors: long-term sensation of cold and dampness can block the meridians, resulting in poor blood circulation and lumbago.