Premenstrual syndrome (PMS) is a set of bothersome physical and emotional symptoms. They occur 1 to 2 weeks before the start of a period.
The Menstrual Flow
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The exact cause of PMS is not known. Hormone changes occur in all women around their period. Overall health, daily habits, and other factors may make some more sensitive to these changes.
PMS most often occurs in women aged 25 to 40 years. Other factors that may increase your chance of PMS include:
PMS may cause:
You will be asked about your symptoms and health history. A physical exam may be done.
You may be asked to keep a log of your symptoms. It will include when your symptoms start and stop and the date of your period. The doctor will assume PMS based on these details.
There is no one treatment that will cure PMS. Steps may help to ease symptoms. Options include:
Stress can trigger PMS and make symptoms worse. Certain habits and tools can help to ease the effect of stress. Relaxation techniques such as music or deep breathing may help. Massage and hot baths may also help reduce tension in the body.
Diets high in salt, sugar, and caffeine may make PMS worse. Large meals may also increase discomfort. Diet should focus on healthy foods. This includes plenty of fruits and vegetables and healthy proteins. Plan for small, frequent meals throughout the day.
Exercise may also help to decrease symptoms. It should occur on a regular basis not just during period.
Vitamins and minerals that may reduce PMS symptoms include:
The doctor may recommend medicine for some symptoms. Options include:
To help reduce your chance of getting PMS, take the following steps:
American Congress of Obstetricians and Gynecologists
Women's Health—Office on Women's Health
The Society of Obstetricians and Gynaecologists of Canada
Premenstrual syndrome. American Congress of Obstetricians and Gynecologists website. Available at: https://www.acog.org/~/media/For%20Patients/faq057.pdf?dmc=1&ts=20120824T1006488269. Accessed September 9, 2019.
Premenstrual syndrome. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T113966/Premenstrual-syndrome . Updated August 22, 2019. Accessed September 9, 2019.
Premenstrual syndrome (PMS) fact sheet. Office on Women's Health website. Available at:
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Updated March 16, 2018. Accessed September 9, 2019.
4/14/2009 DynaMed Plus Systematic Literature Surveillance http://www.dynamed.com/topics/dmp~AN~T113966/Premenstrual-syndrome : Brown J, Shaughn O'Brien PM, Marjoribanks J, Wyatt K. Selective serotonin reuptake inhibitors for premenstrual syndrome. Cochrane Database Syst Rev. 2009;(1):CD001396.
Last reviewed September 2019 by
EBSCO Medical Review Board
Beverly Siegal, MD, FACOG
Last Updated: 9/9/2019