HCG injections can support fertility by helping trigger ovulation in some women and stimulating testosterone production and sperm development in certain men with hormone-related infertility. Human chorionic gonadotropin (HCG) is a hormone that naturally occurs during pregnancy. As a medication, HCG can act similarly to luteinizing hormone (LH), which plays an important role in reproductive function. Depending on the situation, doctors may use HCG...