Get answers to your menopause and sexual dysfunction questions.
Premenstrual syndrome (PMS) refers to a wide range of physical or emotional symptoms that typically occur about 5 to 11 days before a woman starts her monthly menstrual cycle. The symptoms usually stop when menstruation begins, or shortly thereafter.
See also: Premenstrual dysphoric disorder (PMDD)
The exact cause of PMS has not been identified. Changes in brain hormone levels may play a role, but this has not been proven. Women with premenstrual syndrome may also respond differently to these hormones.
PMS may be related to social, cultural, biological, and psychological factors.
The condition is estimated to affect up to 75% of women during their childbearing years.
It occurs more often in women:
The symptoms typically get worse in a woman's late 30s and 40s as she approaches the transition to menopause.
As many as 50% - 60% of women with severe PMS have a psychiatric disorder (premenstrual dysphoric disorder).
Lentz GM. Primary and secondary dysmenorrhea, premenstrual syndrome, and premenstrual dysphoric disorder: etiology, diagnosis, management. In: Katz VL, Lentz GM, Lobo RA, Gershenson DM. Comprehensive Gynecology. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2007: chap. 36
Yonkers KA, O'Brien PM. Premenstrual syndrome. Lancet. 2008:371(9619):1200-1210.
© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885