These are abdominal or pelvic pains caused by prostaglandins that are released when the uterus contracts to shed its lining.

These muscle cramps are typically felt in your pelvis and can range from mild to severe. Cramps during and outside of a ...

Causes: Pelvic inflammatory disease ... undiagnosed because the symptoms are mild or virtually non-existent. They generally involve tenderness, persistent cramping or pain on one or both sides ...