The following are possible causes of low back pain in female patients: 1. Consider whether it is combined with pregnancy, during pregnancy, the uterus will compress the nearby organs due to the increase of the fetus, which can cause pain on both sides of the back. 2. Consider whether it is combined with urinary system diseases, it is recommended to improve the urological ultrasound in regular hospitals to exclude kidney stones, ureteral stones and other diseases. 3. A history of prolonged exertion, poor living, sitting at work, and prolonged sitting and standing can lead to lumbar muscle strain and cause pain. The pain can also be caused by coldness of the lumbar muscles and spasm of the lumbar muscles.4. Lumbar disc herniation, herniated discs compressing the nerves that govern the lumbar muscles can cause pain on both sides of the back of the waist.5. Whether or not there is a combination of tuberculosis, brucellosis and other systemic infectious diseases should be treated differently, and the inflammatory reaction caused by the attack of the cure bacteria on the local area can also cause pain on both sides of the back of the waist.