Male Fertility Problems

Most male infertility cases occur due to sperm production problems. Three important factors of the sperm are 1. count,  2. motility, and 3. morphology (shape). The male may produce too few sperm (oligospermia) or no sperm (azoospermia). It’s also considered abnormal if less than 50 percent of the sperm in the ejaculate are motile (asthnospermia) or if there are too many abnormally shaped sperm (teratospermia).

Abnormal sperm are not believed to be capable of fertilizing an egg.  Alcohol and drugs, including marijuana, nicotine, and certain medications can also temporarily reduce sperm quality. Some studies have found that exposure to environmental toxins, including pesticides and lead, may cause poor sperm quality. Some medical problems and their treatment may lead to difficulties with ejaculation and impotence (the inability to have an erection).