Low back pain is a common condition, especially in women. Both adolescent girls and middle-aged and older women have experienced low back pain at least once in their lives. Statistics show that the incidence of low back pain is generally higher in women than in men at the same age. There are many women who believe that women are prone to low back pain because of the physiological characteristics of menstruation, pregnancy, childbirth and breastfeeding, so they think it is no big deal. In fact, in addition to the special physiological factors related to women’s low back pain, there are many causes of low back pain. Women’s low back pain mainly involves obstetrics and gynecology, orthopedics and urology diseases, which should be differentiated when seeking medical attention. 1, chronic pelvic inflammatory disease This disease is the most common cause of low back pain in women. It is mostly caused by acute pelvic inflammatory disease that occurs in women after undergoing cesarean section, ovarian cystectomy or appendicitis and fails to be treated in time, and is characterized by three major symptoms: low back pain, bouts of lower abdominal cramps and increased leucorrhea. Back pain is caused by the increase of inflammatory exudate, resulting in pelvic adhesions, which seriously affects life and health. Therefore, it is especially important to treat the disease early and prevent it early. 2, abnormal position of the uterus The normal uterus is located in a mildly anterior tilted forward position, and the surrounding ligaments move freely. When the uterus is posteriorly curved or posteriorly tilted, adhesions are caused by inflammation in and around the uterus, resulting in traction back pain, which mostly occurs after frequent abortions, multiple births or other uterine surgeries. Prolapse, prolapse or high adhesion of the uterus to the abdominal cavity, etc., can pull the ligaments and cause the occurrence of lumbago. There is no special treatment for this kind of low back pain. Correcting the prolapsed uterus and changing the position can relieve the symptoms. 3, pelvic tumor Most often seen in middle-aged women. Commonly, such as uterine fibroids, cervical cancer, ovarian cysts, etc., low back pain occurs due to tumor compression of nerves or infiltration of cancer cells into pelvic connective tissue. The pulling of peritoneum by the tumor itself may also cause low back pain. 4, abnormal birth control ring This disease is an aspect that causes women’s low back pain that cannot be ignored. The abnormalities of IUD include the type of IUD does not match with the uterine cavity, the elasticity of IUD is too large or the position of IUD is abnormal. Improper IUDs are embedded in the uterine cavity, stimulating the uterine wall and reflexively causing back pain. In this regard, the birth control ring can be removed and replaced. 5, pregnancy and puerperium strain During pregnancy, as the fetus gradually grows, the lumbosacral and pelvic joints ligaments of pregnant women relax, while the weight of the uterus increases, resulting in the body’s center of gravity shifts forward. In order to maintain the balance of the body, the waist is more forward, if you do not pay attention to rest, it is easy to cause back pain. During pregnancy, the fetus needs sufficient calcium, phosphorus and other nutrients for development. If the intake of nutrients in the diet is insufficient, it can cause bone softening and decalcification of pregnant women, which can also cause back pain. Excessive bleeding during the puerperium, or premature labor, excessive fatigue and cold can also cause low back pain. 6. Genitourinary system infection Due to anatomical and physiological characteristics, women are prone to urinary system infection, such as acute and chronic pyelonephritis, gonorrhea, cervicitis, cervical erosion, etc., which manifests as lumbar pain or sharp pain and radiates along the ureter to the perineum. In addition, urinary stones, tuberculosis, etc., can also cause lumbago. 7, lumbar muscle strain Excessive physical fatigue, abnormal standing and sitting posture can lead to lumbar muscle strain and cause chronic vague pain in the lumbar region. Usually should pay attention to the combination of work and rest. 8, lumbar disc herniation This disease is a common cause of lumbar pain in young and strong women. Mostly caused by lumbar injury, long-term chronic strain, manifested as lumbar pain, lower limbs of radioactive pain numbness, etc., treatment are bed traction, surgery, etc. 9, osteoporosis This disease is the most common cause of low back pain in middle-aged and elderly women. Especially after menopause in women, due to the reduction of bone mass of the spine, the reduction of the weight-bearing capacity of the spine, the body in the weight-bearing and even in walking will have low back pain. 10, wear high heels for a long time wear high heels so that the balance of the lower limbs are affected, standing, walking can not be arbitrary, the whole body’s reaction, synergistic ability is reduced, but also prone to acute lumbar sprain. When sprained muscles, ligaments occur in varying degrees of tearing and trace bleeding, swelling and even bruising, can be manifested as lumbago, bringing great inconvenience to work life. 11.Sacral spine ligament relaxation After pregnancy, the increase of fetus and lumbar support force may lead to the relaxation of sacral spine ligament and compression of pelvic nerves and blood vessels and cause lumbago. This kind of low back pain can gradually disappear with the recovery of lumbar muscle strength after childbirth. 12, internal injury Because of too much childbirth, abortion and indiscipline in intercourse, all can cause kidney damage and cause lumbago. 13.External sensation Long-term sensation of cold and dampness can block the meridians and lead to poor blood circulation and lumbago. 14.Sacroiliac joint strain The sacroiliac joint is composed of the lateral side of the sacrum and the bilateral iliac bones, although it is a synovial joint, the joint surface is staggered in height, and the strong ligaments are fixed, only a small amount of back and forth and rotational activities. Sacroiliac joint sprain is one of the most common causes of lower back pain. Endocrine influence in women in late pregnancy can make the ligaments relaxed and prone to sprain or early postpartum for a long time. Clinical manifestations include persistent localized pain, fear of weight bearing, aggravation with activity, and difficulty turning over.