1, lumbar muscle strain Long-term standing operations such as textile, printing and dyeing, hairdressing, sales and other work of women, due to continuous standing, lumbar tendons, ligament stretching ability is reduced, the local can accumulate too much lactic acid, inhibit the normal metabolism of the lumbar muscle, can also lead to lumbar muscle strain and caused by lumbago. Often carrying heavy objects, lumbar overload, prone to spinal scoliosis, resulting in lumbar muscle strain and lumbago. 2, urinary tract infection Because the female urethra is short and straight, and the urethral orifice is close to the anus, there are often E. coli bacteria parasites, coupled with the characteristics of female physiology, the urethral orifice has more chances of contamination, if you ignore hygiene, urinary tract infections are likely to occur. Low back pain is mostly caused by acute and chronic pyelonephritis, manifested as lumbar swelling and pain, and in severe cases, radiating along the ureter to the perineum. In addition to urinary tract infections, urinary stones, tuberculosis and other disorders can also cause low back pain. 3. Reproductive organ diseases Women’s reproductive organs have to undergo menstruation about 400 times in their lifetime, and are also responsible for pregnancy and childbirth; some women also undergo abortion and birth control surgery. Therefore, the incidence of inflammatory diseases of reproductive organs is high, such as tubal inflammation and pelvic inflammatory disease. These inflammatory diseases are easily complicated by low back pain. Posterior tilt and retroflexion of the uterus is also one of the causes of low back pain in women, and serious reproductive organ disorders such as uterine fibroids, cervical cancer, ovarian cysts, etc. can cause compressive implication low back pain. 4, cold, rheumatism, etc. This kind of women, mostly due to the attack of wind, dampness and cold during menstruation, childbirth and postpartum, lead to long bone spurs in the spine and induce lumbago. If the lumbar region has been sprained, it may develop into a prolapsed intervertebral disc and cause more severe lumbar pain, even affecting the flexion, extension and rotation of the spine. Pregnancy and puerperium strain During pregnancy, as the fetus grows, the lumbosacral and pelvic joint ligaments of pregnant women relax, and the weight of the uterus increases with the growth of fetal age, causing the body’s center of gravity to shift forward. In order to maintain body balance, the waist is more forward, if 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 dietary intake 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 back pain. Many pregnant women in the postpartum period, although sitting well, but still will appear lumbago phenomenon, this is the most common phenomenon of postpartum lumbago pregnant women, postpartum lumbago phenomenon if not well managed, later may bring harm to women’s health. Generally, it is caused by the following reasons: 1, lack of exercise: always lying or sitting in bed after childbirth, easy to cause pelvic stasis. And weight gain will increase the load of lumbar muscle. 2, improper rest: after childbirth, but also often bend over to take care of the baby, such as bathing, dressing, changing diapers and other overwork, lumbar muscles are overwhelmed, it is easy to cause lumbar muscle strain and pain. 3, old problems: prenatal back pain caused by bone, kidney, gynecological and other diseases, may be aggravated after childbirth. 4, prematurely wear high heels: so that the body weight shifts forward, in addition to causing discomfort such as foot pain, but also through the reflex involving the lumbar region, resulting in soreness and pain. 5, improper breastfeeding posture: often take improper or non-relaxed posture to breastfeed the baby, such as sideways, bending and other postures, or girding too tight, so that the lumbar muscles are always in a state of non-relaxation, resulting in lumbar muscle strain and lumbago.