Any of a complex of symptoms (including emotional tension and fluid retention) experienced by some women in the days immediately before menstruation.
- The week or so before the menstrual period is often characterized by symptoms of premenstrual syndrome.
- The main outcome measure was a reduction in overall symptoms of premenstrual syndrome.
- The range of physical and mental symptoms called premenstrual syndrome can affect women two to 14 days before menstruation begins.
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