What is the cause of menstrual pain in the back waist?

Menstruation hind waist ache basically considers is a few department of gynaecology disease cause, wait like cervicitis, pelvic inflammatory disease, endometritis, but also cannot rule out is lumbar muscle strain, lumbar intervertebral disc is outstanding wait for other reason to cause. Suggest had better go to a hospital to check, after finding out a reason, right because of cure.