Many different factors and problems can cause infertility, including problems in the female reproductive system, the male reproductive system, or a combination of the two.
Infertility Risk Factors for Men and Women
Age, chronic diseases, and endometriosis are common factors for women. For men, they are STDs, toxic substances at work, and cigarette smoking.
Male Factor Infertility
Problems with the production and maturation of sperm are the most common causes of male infertility.