Infertility is defined clinically in women and men who cannot achieve pregnancy after 1 year of having intercourse without using birth control, and in women who have two or more failed pregnancies. Many different medical conditions and other factors can contribute to fertility problems, and an individual case may have a single cause, several causes, or—in some cases—no identifiable cause. Overall, one-third of infertility cases are caused by male reproductive issues, one-third Sterile men dating female reproductive issues, and one-third by both male and female reproductive issues or by unknown factors.
To conceive a child, a man's sperm must combine with a woman's egg. The testicles make and store sperm, which are ejaculated by the penis to deliver sperm to the female reproductive tract during sexual intercourse.
The most common issues that lead to infertility in men are problems that affect how the testicles work. Other problems are hormone imbalances or blockages in the male reproductive organs. In some cases of infertility, a man produces less sperm than normal.
The most common cause of this condition is varicocele pronounced VAR-i-koh-seelan enlarged vein in the testicle. Share Facebook Twitter Pinterest Email. How common is male infertility, and what are its causes?
Report on optimal evaluation of the infertile male. Fertility and Sterility86, S—S Fertility and Sterility90 5, supplS1—S6.