Volume 13, Number 4Review ArticlesFertility and the Aging MaleCondition ReviewRandall B MeachamIsiah HarrisCarolyn FronczakLauren RothIn the United States since 1980, the birth rate in women aged > 35 years has increased by nearly 60%, whereas the birth rate for women aged 20 to 34 years has increased by only 10%. The trend in parenthood at an older age has also been seen in men. Since 1980, the fertility rate for men in their 30s has increased by 21% and for men aged 40 years and older, the rate has increased nearly 30%. In contrast, the fertility rate in men younger than age 30 years has decreased by 15%. Age-related infertility will continue to be a problem. A basic understanding of the issues is critical for health care professionals so that they can effectively counsel patients who are considering a delay in childbearing for social reasons or for those seeking fertility treatments. This review details the changes in fertility seen in the aging male. [Rev Urol. 2011;13(4):e184-e190 doi: 10.3909/riu0538] © 2011 MedReviews®, LLCAging maleFertilityMiscarriage ratesAge-related infertility