Premenstrual dysphoric disorder (PMDD) is a severe form of premenstrual syndrome (PMS). If you have PMDD, you’ll likely have emotional and physical symptoms a week or two before your period starts.

Hormonal IUDs can also make periods lighter or eliminate them, helping ease some symptoms of PCOS. Premenstrual Syndrome (PMS) Premenstrual syndrome (PMS) and its more severe form, premenstrual ...