Human Chorionic Gonadotropin (HCG) is a hormone that mimics the natural effects of Lutenizing Hormone (LH). In men HCG is used to for several indications that include 1) preservation of fertility while on testosterone replacement therapy (TRT) 2) maintain testicular volume while on TRT 3) as a stand-alone medication to improve testosterone levels in hypogonadal males and 4) to improve fertility after a man stops TRT. To learn more about the safety, efficacy and clinical use of HCG, please read the following information below.