“Aunt” generally refers to a woman’s menstrual period. There are many reasons for back pain during menstruation, which may be caused by pelvic congestion, prostaglandins, chronic pelvic inflammatory disease and so on. 1. Pelvic congestion: During menstruation, the pelvis will become congested, and pelvic congestion may lead to a feeling of falling and pain in the lower back. 2. The role of prostaglandins: women have elevated prostate levels during menstruation, and prostaglandins can cause strong contraction of uterine smooth muscle and vascular spasms, resulting in uterine ischemia and hypoxia and dysmenorrhea, which can manifest as symptoms of low back pain. 3. Chronic Pelvic Inflammatory Disease: Common symptoms include lower abdominal pain, lumbar pain, increased vaginal discharge, increased pain symptoms after activity or sexual intercourse, and some may cause heavy or prolonged menstrual periods. There may be other reasons for back pain during menstruation, and you need to go to the hospital in time to complete the relevant examinations and follow the doctor’s instructions to clarify the causes for targeted treatment and therapy.