I'm having pain in lower back my period keeps going and coming back?

Schedule Obgyn appt. Painful periods are a common reason patients come too see the gynecologist. There are lots of causes from endometriosis, ovarian cysts, fibroids and infections to name a few. The usual first choice is Ibuprofen to block a chemical called prostaglandins which causes pain. Your doctor can help determine the cause and discuss treatment options.