Primary Dysmenorrhea

Primary Dysmenorrhea is a common condition that causes painful menstrual cramps in the lower abdomen. It involves the reproductive system, specifically the uterus, which contracts strongly during menstruation. These contractions are caused by increased production of prostaglandins, hormone-like substances that trigger muscle tightening and pain. The pain usually starts just before or at the beginning of the menstrual period and can last for several days. It may be accompanied by other symptoms such as nausea, headache, and fatigue. This condition primarily affects young women and can significantly impact daily activities and quality of life.

Primary Dysmenorrhea is defined as painful menstruation without an underlying pelvic pathology. It results from excessive production of prostaglandins, particularly PGF2α, by the endometrium during menstruation, leading to increased uterine contractions and ischemia. The pain is typically crampy, located in the lower abdomen, and may radiate to the back or thighs. It usually begins within a few hours of menstrual onset and lasts 1 to 3 days. Unlike secondary dysmenorrhea, there is no associated pelvic disease such as endometriosis or fibroids. The condition is most common in adolescents and young adults and is a leading cause of menstrual-related disability.