many hormones play a role in gynecomastya, the main three are
testosterone, estradiol
and prolactine, regarding the
testosterone you should have a healthy testosterone to estradiol ratio, estradiol E2 (estrogen) is a very important hormone for bothe genders and its very supportive for your immune system, your bone structure your emotions and even your sex drive but it should always be in a right balance with testosterone, if it was imbanced it will cause many troubles including gyno.