Which factors causes gynecomastia in adults?

Updated: Mar 22, 2018
  • Author: George Ansstas, MD; Chief Editor: George T Griffing, MD  more...
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Gynecomastia in adults is often multifactorial. Increased aromatization of testosterone to estradiol and the gradual decrease of testosterone production in the aging testes most often account for gynecomastia in adult males. Older men are also more likely to take medications associated with gynecomastia than are younger men.

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