Back pain all the time is not menstruation, mainly may be caused by pregnancy and pregnancy-related diseases, gynecological inflammation, gynecological tumors and other reasons. Blood test, abdominal ultrasound, hysteroscopy, secretion culture and other tests can be performed at the hospital to determine the cause and provide targeted treatment. Common causes and treatment 1. Pregnancy and pregnancy-related diseases: After pregnancy, as the embryo develops, the hormone level increases, and when the gradually increasing uterus pulls the ligaments, back pain can occur, and pregnancy will not come to menstruation, which is a normal pregnancy reaction. Women can go to the hospital for blood HCG value measurement and vaginal ultrasound to diagnose whether they are pregnant or not. Pregnant women need to supplement nutrition and regular maternity checkups. 2. Gynecological inflammation: When cervicitis and cervical adhesions are serious, the cervical opening is occluded and blood cannot be discharged when menstruation comes, which is manifested as absence of menstruation. The accumulated blood can continuously stimulate the uterus, causing abdominal pain, lumbago, etc., accompanied by fever, painful intercourse, etc. Patients should go to the hospital for examination such as culture of secretion, blood routine and hysteroscopy to determine the causative organism and the degree of infection. Application of antibiotics can fight infection and reduce inflammatory reaction, and surgery is needed when adhesions are serious. 3. Gynecological tumors: Ovarian cancer and cervical cancer spreading and metastasizing to the peritoneum can lead to low back pain and menstrual disorders, which can be manifested as no menstruation. Severe cases will rapidly lose weight, complicate ascites, etc., and need timely surgery or radiotherapy under the guidance of doctors; 4. Combined diseases: Ureteral stones, glomerulonephritis, lumbar muscle strain, lumbar disc protrusion and other lumbar diseases combined with menstrual disorders will also manifest as back pain and non-menstruation. Patients need to go to the hospital for examination to determine the type of disease and then treat the cause. Precautions Rest in case of lumbar pain to avoid aggravating the pain. Avoid sexual intercourse when the cause is not determined, as this may lead to miscarriage or abnormal vaginal bleeding in those who are pregnant.