Posts Tagged ‘bodybuilder gynecomastia’

Gynecomastia in male bodybuilders Bodybuilder gynecomastia is most often caused by an excessive amount of estrogen or prolactin as a result of inappropriate anabolic steroid use, most commonly testosterone or its derivatives. When high levels of testosterone hormones are injected, the enzyme aromatase converts a portion of that testosterone into estrogen. Aromatase converts testosterone into…