Breast pain is a common problem in women who are having periods (menstrual cycles). It is less common in older women. The pain can be in one breast or in both. It may come and go each month, or it may last for several weeks, or even months.
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Source
The Evaluation of Common Breast Problems by M Morrow, M.D. (American Family Physician April 15, 2000, http://www.aafp.org/afp/20000415/2371.html)
Written by familydoctor.org editorial staff
Reviewed/Updated: 01/11
Created: 09/00