What causes lower back pain during your period?

Your uterus becomes engorged during your flow and contracts to expel the contents. This can cause the cramping and ache you feel in your back. A heating pad works well to help relieve these symptoms, or if needed ibuprofen has been shown to be very effective when taken on a regular dosing schedule starting the day before you are due to start your period. Somehow the ibuprofen blocks the prostaglandins which are the major cause of period discomfort. You would take your dose( some take 2-200mg some just need 1) and repeat every 6 hours for the duration of your flow, trying to start the day before if possible, if not the day you start is ok. Check with your Dr. before starting any medicine and if you want more information or find your symptoms aren’t tolerable or improving. Good luck.