Definition
Premenstrual syndrome (PMS) is a disorder marked by physical and emotional symptoms. It affects women 1-2 weeks before the beginning of their menstrual period.

Causes
While the exact cause is not known, PMS may be related to certain factors (environmental, metabolic, or behavioral) that may make a woman more vulnerable to the hormonal changes that occur during menstruation.
Risk Factors
PMS most often occurs in women aged 25-40 years. Other factors that may increase your chance of PMS include:
- Stopping birth control pills
- Major life stress
- Depression
Symptoms
PMS may cause:
- Irritability
- Mood swings
- Anxiety
- Depression
- Diminished self-esteem
- Difficulty concentrating
- Sleep problems
- Appetite changes, such as sugar and/or salt cravings, or overeating
- Weight gain
- Fatigue
- Bloating
- Headache
- Breast swelling and tenderness
- Palpitations
- Lightheadedness
- Gastrointestinal upset
- Muscle pain
Symptoms usually improve when bleeding starts (menstrual period).
Diagnosis
You will be asked about your symptoms and medical history. A physical exam will also be done.
You will be asked to keep a detailed record of your monthly physical and emotional symptoms. If caused by PMS, these symptoms will likely occur 1-2 weeks before your menstrual period. You may have PMS if symptoms occur at the same phase of the menstrual cycle each month.
Treatment
Treatment options include:
Stress Management
Stress may be managed through lifestyle changes. Relaxation techniques, deep breathing, massage, music, and hot baths can also help reduce stress.
Dietary Changes
Dietary changes may be helpful. Decreasing salt, sugar, and caffeinemay be advised. Eating small, frequent meals may also help.
Vitamins and Minerals
The following vitamin and mineral supplements might reduce PMS symptoms:
Regular Exercise
Exercising throughout the week may help to reduce symptoms.
Medications
Medications to treat PMS include:
- Diuretics to reduce bloating and fluid retention.
- Pain relievers to relieve cramps, headaches, and muscle aches
- Birth control pills to reduce physical symptoms
- Antidepressants to reduce emotional symptoms
Psychotherapy
Women with severe PMS symptoms may benefit from cognitive behavioral therapy. Therapy may reduce negative emotions and enhance problem-solving skills in relationships. It may also manage obstacles, frustrations, and discomfort.
Prevention
To help reduce your chance of getting PMS, take the following steps:
- Manage stress
- Eat a healthy diet, one that is low in saturated fat, and rich in whole grains and fruits and vegetables
- Consume less refined sugar, salt, and caffeine
- Do regular aerobic exercise
Revision Information
- Reviewer: EBSCO Medical Review Board Beverly Siegal, MD, FACOG
- Review Date: 09/2017 -
- Update Date: 09/30/2013 -