The common causes of lumbosacral pain in 56-year-old women include lumbosacral muscle strain, sacroiliitis or pelvic inflammatory disease, etc. Different treatments are given according to different causes, and the treatments include rest, hot compresses and medication. 1. Lumbosacral muscle strain: chronic lumbosacral muscle injury can be caused by prolonged sitting, prolonged standing, or going from a stooped position to an upright position, holding heavy objects, etc. Lumbosacral pain will be aggravated by exertion and relieved by resting, and is usually treated with rest and hot compresses. 2. Sacroiliac arthritis: manifested as obvious pressure pain at the sacroiliac joints, sometimes lumbosacral pain, symptoms are obvious when cold. It is usually improved by localized hot compresses. 3. Pelvic inflammatory disease: when there is inflammation in the pelvic cavity, the secretion of inflammation will lead to inflammatory adhesions in the pelvic cavity, effusion, lumbosacral pain, may need antibiotics such as metronidazole in the acute stage. Women 56 years old lumbosacral pain may have other causes, it is recommended to go to the regular hospital in time, by the doctor according to the symptoms, signs and auxiliary examination to determine the cause of the disease, for the cause to give the correct treatment.