What are the causes of pathologic gynecomastia?

Updated: Mar 22, 2018
  • Author: George Ansstas, MD; Chief Editor: George T Griffing, MD  more...
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Pathologic gynecomastia can be caused by an increase in the production and/or action of estrogen, by a decrease in the production and/or action of testosterone accompanied by increased aromatization and high estrogen, or by drug use. However, gynecomastia can also be idiopathic. [6]

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