Premenstrual dysphoric disorder (PMDD) is a condition that affects some women before their menstrual cycle. It is characterized by severe mood swings, irritability, and anxiety that can significantly impact one's quality of life. There are many synonyms for PMDD, including premenstrual syndrome (PMS), menstrual-related mood disorder, and premenstrual exacerbation of underlying mood disorder. Other lesser-known terms include premenstrual tension syndrome, late luteal phase dysphoric disorder, and premenstrual dysphoric syndrome. While the terms may vary, they all describe the same condition and highlight the importance of recognizing and properly treating symptoms associated with PMDD.