Menstrual cramps have no medical complications in themselves, but they often interfere with school, work and social activities.

The diseases and conditions sometimes associated with menstrual cramps may have complications, though. For example, endometriosis can cause fertility problems, while pelvic inflammatory disease can scar your fallopian tubes, increasing the risk of a fertilized egg implanting in the tube (ectopic pregnancy) instead of in your uterus.

May. 03, 2011