The Facts
Premenstrual syndrome (PMS) is a condition familiar to many women. Also known as ovarian cycle syndrome or premenstrual tension, it's defined as a set of symptoms (e.g., moodiness, bloating, breast tenderness) that comes on a few days before the start of a menstrual period. Unfortunately, PMS is poorly understood.
Different women will experience different PMS symptoms. For some women, PMS may cause major discomfort and even disrupt normal activities. Not every woman experiences PMS. Some are totally unaffected and feel perfectly fine during the days leading up to menstruation. Other women may have a more severe form of PMS called premenstrual dysphoric disorder (PMDD). Women with this form of PMS may suffer severe depression, anger, or low-self-esteem along with other symptoms.