Benign breast diseases are among the most common diagnoses that the busy obstetrician–gynecologist will see in practice. Moreover, breast cancer will undoubtedly be diagnosed numerous times in an obstetrician–gynecologist's career. An ability to accurately and promptly diagnose both benign and malignant breast diseases is within the purview of the generalist obstetrician–gynecologist. A thorough understanding of benign breast diseases, including appropriate diagnostic techniques, is vitally important in well-women care. In addition, a working knowledge of breast cancer risk factors with the ability to identify women at high risk and either refer or initiate risk reduction methods is equally important. This review outlines common benign breast diseases stratified by future risk of breast cancer and discusses appropriate management after diagnosis.