The term “menstruation” is generally used to refer to a woman’s period. Common causes of menstrual back pain include pelvic congestion, fatigue, increased prostaglandins, and gynecological inflammation. 1. Pelvic congestion: During menstruation, the level of sex hormones in the body undergoes significant changes, which may result in constant congestion in the pelvis and pain in the lower back. 2. Exhaustion: During menstruation, the immunity in women’s body decreases, muscle strength decreases, and due to overwork and lack of sufficient rest, it may lead to lumbar muscle strain and symptoms of low back pain. 3. Increased prostaglandins: Prostaglandins increase during menstruation, causing contractions and spasms in the smooth muscles of the uterus, which can lead to dysmenorrhea and cause low back pain. 4. Gynecological inflammation: such as salpingitis, pelvic inflammatory disease, etc., due to inflammatory stimulation triggered by the lower back and lower abdominal pain, the pain is persistent, aggravated by activity or sexual intercourse, accompanied by vaginal HCG and other symptoms. Menstruation waist especially soreness there are other factors may be, it is recommended that the patient timely medical care, improve the relevant examination, under the guidance of a specialist doctor symptomatic treatment, do not self-medication, so as not to delay the condition.