More than 90% of male infertility cases are due to low sperm counts, poor sperm quality, or both. The remaining cases of male infertility can be caused by a number of factors including anatomical problems, hormonal imbalances, and genetic defects.
Sperm abnormalities can be caused by a range of factors, including congenital birth defects, disease, chemical exposure, and lifestyle habits. (See Risk Factors section.) In many cases, the causes of sperm abnormalities are...
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Aging changes in the male reproductive system may include changes in testicular tissue, sperm production, and erectile function. These changes... Read more »
Source: ADAM Encyclopedia
Andropause; Male reproductive changesReferencesMinaker KL. Common clinical sequelae of aging. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd... Read more »
Source: ADAM Encyclopedia
CausesMany medical conditions can contribute to infertility. In fact, most cases of infertility are due to underlying medical problems. These... Read more »
Source: ADAM Encyclopedia
Assisted Reproductive TechnologiesAssisted reproductive technologies (ART) are available for men who want to conceive children after a vasectomy. The... Read more »
Source: ADAM Encyclopedia
As a woman ages, a number of changes take place in the female reproductive system. For women, the cessation of menses (menopause) is an obvious sign... Read more »