What is backache before menstruation?

The first is due to changes in hormone levels in the body before menstruation, which changes the internal environment and endocrine system functions, resulting in poor local blood circulation, and easy to cause a consumption and weakness of the body. Therefore, it will cause back pain, so generally after menstruation, it will naturally recover. The second reason may be that the patient has a history of lumbar muscle strain, lumbar disc herniation and lumbar degenerative diseases, etc., so the same will be more obvious for low back pain before menstruation.