what is it called when you have a bad cramp
Menstruation occurs when the uterus sheds itâs lining once a month. The lining passes through a small opening in the cervix and out through the vaginal canal. Some pain, cramping, and discomfort during menstrual periods is normal. Excessive pain that causes you to miss work or school is not. Painful menstruation is also called dysmenorrhea. There are two types of dysmenorrhea: primary and secondary. Primary dysmenorrhea occurs in women who experience pain before and during menstruation.