Painful menstrual periods are periods in which a woman experiences crampy lower abdominal pain, sharp pain that comes and goes, aching pain, or possibly back pain.
Painful menstruation affects many women. For a small number of women, the discomfort makes it difficult to perform normal household, job, or school-related activities for a few days during each menstrual cycle. Painful menstruation is the leading cause of lost time from school and work among women in their teens and 20s.
The pain may begin several days before, or just at the start of your period. It generally subsides as menstrual bleeding tapers off.
Although some pain during menstruation is normal, excessive pain is not. The medical term for excessively painful periods is dysmenorrhea.
There are two general types of dysmenorrhea:
Activity of the hormone prostaglandin, produced in the uterus, is thought to be a factor in primary dysmenorrhea. This hormone causes contraction of the uterus and levels tend to be much higher in women with severe menstrual pain than in women who experience mild or no menstrual pain.
French L. Dysmenorrhea. Am Fam Physician. 2005; 71(2): 285-291.
Harel Z. Dysmenorrhea in adolescents and young adults: etiology and management. J Pediatr Adolesc Gynecol. 2006;19:363-371.