What Is Male Infertility

Male infertility refers to the inability of a male to achieve a pregnancy in a fertile female. In humans it accounts for 40-50% of infertility. Male infertility is commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity.

Male infertility is usually diagnosed by a semen analysis. This relatively simple test involves the man providing a semen sample for a lab to evaluate. The lab uses this sample to measure the amount of semen and the number of sperm, and to evaluate sperm shape and movement.

The good news is that most cases of male infertility can be resolved either by treating the problem or using fertility treatments. When this is not the case, a couple facing male infertility may turn to a sperm donor or adoption to help build their family.