Male Fertility Overview
A man’s reproductive system is responsible for making, storing and transporting sperm. This process is ultimately controlled by hormones, namely, testosterone, luteinizing hormone (LH), and follicle-stimulating hormone (FSH).
Once the testicles receive the signal to produce sperm (driven by the reproductive hormones), sperm travel from the testicles, where they are made, into the epididymis for storage. Just prior to ejaculation, the sperm moves into the vas deferens that joins the ejaculatory duct. When ejaculation occurs, the sperm mixes with fluids from the prostate and seminal vessels, creating the cloudy white substance known as semen.