from Section 2 - Clinical Evaluation of the Infertile Male
Published online by Cambridge University Press: 08 July 2023
Infertility, defined as the inability to achieve conception following 1 year of unprotected intercourse, is thought to affect 15 percent of couples worldwide [1]. Male factor infertility is suspected to contribute to half of all infertility cases, playing a sole contributory role in 20 percent of cases, while acting concurrently with female factor infertility in 30 percent of cases [2, 3]. Over time, there has been a steadily accumulating body of evidence in the medical literature suggestive of an association between male infertility and other comorbid medical pathologies, demonstrated not only in reported disease prevalence, but also in rates of hospitalization and mortality. Although the exact mechanisms behind these associations remain unclear, and multiple hypotheses have been proposed, implicating genetic, developmental, and lifestyle etiologies (Fig. 7.1). In this chapter, we will review the associations between infertility and comorbidities, as well as the proposed etiologies, in order to illustrate how infertility may be used as an overall metric for men’s health.
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