Back pain before menstruation, a. Possible menstrual cramps. Second, there may be gynecological inflammation, such as pelvic inflammatory disease and adnexitis. There may be physiological endocrine disorders. 4. The painful menstruation may be caused by the exudation of inflammatory substances, such as the increase of prostate hormones. Before the menstruation, if you feel back pain, it is recommended to do physiotherapy, hot compress small stomach, must keep warm, can do Chinese medicine compress iron, acupuncture or moxibustion is a good choice. According to your own clinical manifestations and other related examinations to further determine if there are other diseases for diagnosis and timely treatment.