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Study, 2010

What is the difference between PMS and PMDD?

PMS affects about 75% of women and lasts a week or two before the period. PMDD is a more severe form affecting 3-6% of women, and both are diagnosed by tracking symptoms over several cycles, not blood tests.

Early or limited evidence General information about women of reproductive age

What they did

This is an educational article providing information about PMS and PMDD, their symptoms, prevalence, and how they are diagnosed.

What they found

PMS includes emotional and physical symptoms that last a week or two before the period and stop shortly after it starts. About 75% of women experience PMS at some point before menopause. PMDD is a more severe form affecting 3-6% of women. PMDD can interfere with daily life and relationships. Women who have had major depression are more likely to have PMDD. PMS and PMDD have the same physical symptoms, but PMDD has more severe mood symptoms. Diagnosis requires tracking both mood and physical symptoms over 2-3 cycles, not blood or laboratory tests.

What it means for you

Since PMDD is less common and more severe, it's important to track symptoms over several cycles to determine whether someone has PMS or PMDD, and which one requires treatment. Blood tests cannot diagnose these conditions, so medical providers rely on what women report about their symptoms and when they occur.

about 75%

women who experience PMS

3-6%

women who experience PMDD

About the study

Original title
Premenstrual Syndrome (PMS) and Premenstrual Dysphoric Disorder (PMDD)
Authors
Rogerio A. Løbo, JoAnn V. Pinkerton
Journal
The Journal of Clinical Endocrinology & Metabolism
Year
2010
Study design
Study
Participants
75
Open access
Yes

Topics