Premenstrual Syndrome (PMS) | Causes & Risk Factors

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What causes PMS?

No one knows for sure what causes PMS. It seems to be linked in part to changes in hormone levels during the menstrual cycle. PMS is not caused by stress or psychological problems, although these may make the symptoms of PMS worse.

Written by familydoctor.org editorial staff

Reviewed/Updated: 04/14
Created: 01/96

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