Oligomenorrhea
Definition
Medical dictionaries define oligomenorrhea as infrequent or very light menstruation. But physicians typically apply a narrower definition, restricting the diagnosis of oligomenorrhea to women whose periods were regularly established before they developed problems with infrequent flow. With oligomenorrhea, menstrual periods occur at intervals of greater than 35 days, with only four to nine periods in a year.
Description
True oligomenorrhea cannot occur until a young woman's menstrual periods have been established. In the United States, 97.5 percent of women have begun normal menstrual cycles by age 16. The complete absence of menstruation (menstrual periods never started or they stopped after having been...
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