Menstrual Irregularities One of the most common disorders associated with menstruation among younger women is dysmenorrhea or painful periods. PMS is a set of symptoms that may be experienced as the period approaches and usually ends when the bleeding starts. There are also certain menstrual irregularities seen during puberty . Painful menstrual cramps are the cause of much suffering in women who experience them regularly. Far from being a psychological disorder, dysmenorrhea is a very real medical problem and the pain can be extremely severe.
Excess prostaglandins make the smooth muscles contract.
As the next period approaches, the levels of prostaglandins in a woman s body increase. The levels are highest when the period begins. This causes painful contractions in the uterus . The uterus contracts so violently that it cuts off blood supply. Pain then follows as the muscle is not getting enough oxygen.