Male infertility pertains to the incapacity of a male to cause a fertile female pregnancy. It accounts for 40 to 50 percent of infertility in humans. About 7 percent of all men are affected. Male infertility is usually caused by semen deficiencies, and semen quality is used as a substitute for male fertility. The infertility diagnosis starts with the search for hormone imbalances, medical conditions, or genetic issues.
A problem that many men have but few are willing to talk about is impotence, also known as erectile dysfunction (ED). As men get older it’s quite normal for changes to happen to their sexual function.