{"id":15243,"date":"2025-06-06T21:14:29","date_gmt":"2025-06-06T21:14:29","guid":{"rendered":"https:\/\/givelegacy.wpengine.com\/?post_type=resource&#038;p=2083"},"modified":"2025-06-06T21:57:48","modified_gmt":"2025-06-06T21:57:48","slug":"age-limit-on-male-fertility","status":"publish","type":"post","link":"https:\/\/www.givelegacy.com\/resources\/age-male-fertility\/","title":{"rendered":"Age and male fertility"},"content":{"rendered":"\n<p>When we hear the term \u201cbiological clock,\u201d most of us tend to connect the term to women. After all, if the world\u2019s oldest dad was able to father a baby at 96 years old, surely there\u2019s no age limit on male fertility, right?<\/p>\n\n\n\n<p>Not exactly. Stories of men in their 60s or older fathering children tend to fuel the idea that male fertility is eternal, but that\u2019s a misconception. Men also experience the effects of aging with a decrease in fertility over time. To some extent, men\u2014just like women\u2014face a biological clock.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Key takeaways<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Male fertility typically begins to decline around age 35, becoming more pronounced after 40.<\/li>\n\n\n\n<li>Most men never completely stop producing sperm. But sperm quality deteriorates with age.<\/li>\n\n\n\n<li>Advanced paternal age increases risks for pregnancy outcomes and offspring health, including miscarriage, longer time to conception, and likelihood of certain health conditions in children.<\/li>\n\n\n\n<li>Lifestyle changes can help improve sperm quality, but freezing sperm is the most effective way to preserve fertility for the future.<\/li>\n<\/ul>\n\n\n<div class=\"gb-container gb-container-1329ae13\">\n<div class=\"gb-container gb-container-4fd5cacd\">\n<div class=\"gb-container gb-container-6446e806\">\n\n<figure class=\"gb-block-image gb-block-image-6ce995b8\"><img loading=\"lazy\" decoding=\"async\" width=\"540\" height=\"540\" class=\"gb-image gb-image-6ce995b8\" src=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/openingkit_donniemodel_livingroom_540x5401721323944.webp\" alt=\"Man opening Legacy at-home sperm testing kit\" title=\"openingkit_donniemodel_livingroom_540x5401721323944\" srcset=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/openingkit_donniemodel_livingroom_540x5401721323944.webp 540w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/openingkit_donniemodel_livingroom_540x5401721323944-300x300.webp 300w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/openingkit_donniemodel_livingroom_540x5401721323944-150x150.webp 150w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/openingkit_donniemodel_livingroom_540x5401721323944-345x345.webp 345w\" sizes=\"(max-width: 540px) 100vw, 540px\" \/><\/figure>\n\n<\/div>\n\n<div class=\"gb-container gb-container-8c34c375\">\n\n<h2 class=\"gb-headline gb-headline-9ee56c41 gb-headline-text gb-headline-545ba7d5\">Considering sperm freezing?<\/h2>\n\n\n\n<p class=\"gb-headline gb-headline-3bce79ad gb-headline-text gb-headline-864305d0\">Answer a few questions and we\u2019ll build a plan for you.<\/p>\n\n\n\n<style>\na:link {\n  text-decoration: none;\n}\n<\/style>\n\n\n<a class=\"gb-container gb-container-219b7976 legacy-segment\" href=\"https:\/\/quiz.givelegacy.com\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-segment=\"{&quot;name&quot;:&quot;Quiz Opened&quot;,&quot;options&quot;:{&quot;element_id&quot;:&quot;c26a4ae6-412d-49d0-8e79-bd83a461cdcc&quot;}}\">\n\n<p class=\"gb-headline gb-headline-f4eb10ab gb-headline-text gb-headline-85062f44 btn-link\">Get started<\/p>\n\n\n\n<figure class=\"gb-block-image gb-block-image-563d254a\"><img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"49\" class=\"gb-image gb-image-563d254a\" src=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/icons\/arrow-right-circle-2.png\" alt=\"arrow-right-circle-white\" title=\"arrow-right-circle-white\"\/><\/figure>\n\n<\/a>\n<\/div>\n<\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"at-what-age-are-men-most-fertile\">When are men most fertile?<\/h2>\n\n\n\n<p>Most studies suggest that male fertility peaks between ages 30 and 35, although an exact age hasn\u2019t been definitively identified. Male fertility decline typically begins at the age of 35 and gets steeper at 40.&nbsp;<\/p>\n\n\n\n<p>The Centers for Disease Control and Prevention (CDC) reports that most men experience significant age-related fertility decline after they reach the age of 40.<sup>1<\/sup> Other studies show that the decline begins around age 35\u2014in one study, men over the age of 35 had fertility rates of 25%, compared to men under 35 who had fertility rates of 52%.<sup>2<\/sup> Another study that evaluated the relationship between age and semen parameters also concluded that male fertility decline begins at 35, and suggested that male fertility peaks between 30 and 35.<sup>3<\/sup><\/p>\n\n\n\n<p>Bottom line: Men generally see a decline in fertility beginning at 35, and the downward trend progresses from there.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Do men stop producing sperm?<\/h2>\n\n\n\n<p>Generally, no. Women are born with all the eggs they\u2019ll ever have, but men produce sperm throughout their lives (a process called spermatogenesis). However, although men typically never stop producing sperm, its quality measurably declines with age.<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/age-male-fertility-sperm-quality-declines-with-age1749244020.png\" alt=\"\" class=\"wp-image-47189\" srcset=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/age-male-fertility-sperm-quality-declines-with-age1749244020.png 960w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/age-male-fertility-sperm-quality-declines-with-age1749244020-300x169.png 300w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/age-male-fertility-sperm-quality-declines-with-age1749244020-768x432.png 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How does age affect male fertility?<\/h2>\n\n\n\n<p>Is there an \u201cage limit\u201d to male fertility? In a way. As a man ages, sperm count, motility, morphology, and genetic health can all be impacted. This can affect his ability to get a partner pregnant or have a healthy baby.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sperm count and concentration<\/h3>\n\n\n\n<p>Sperm count is the number of sperm produced per ejaculation. A low sperm count can reduce the chance of pregnancy. One study found that sperm count declines up to 2.6% per year of age.<sup>4<\/sup>&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sperm motility (movement)&nbsp;<\/h3>\n\n\n\n<p>Sperm motility refers to how well sperm moves, or \u201cswims.\u201d Sperm with low motility have a lower probability of fertilizing an egg. According to research, sperm motility declines about 0.8% per year of age.<sup>5<\/sup> When comparing the sperm in men between the ages 30 to 35 with men over 55, researchers found sperm motility was 54% lower in the older group.<sup>6<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sperm morphology (shape)<\/h3>\n\n\n\n<p>A sperm morphology test measures what percentage of sperm has the proper shape, size, and structure. Generally, men produce many abnormal sperm \u2014 morphology measurements as low as 4% are still considered within the normal range. But over time, that number tends to fall. Research has found that sperm morphology decreases by 0.2% to 0.9% per year of age.<sup>7<\/sup>&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Sperm DNA fragmentation&nbsp;<\/h3>\n\n\n\n<p>Sperm DNA fragmentation index refers to the amount of abnormal genetic material (damaged DNA) inside sperm. Research indicates that sperm DNA fragmentation increases by 3% per year of age.<sup>8<\/sup> DNA fragmentation can occur because of factors including oxidative stress, environmental toxins, and cellular aging.&nbsp;<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/age-male-fertility-sperm-dna-fragmentation-increases-with-age1749244376.svg\" alt=\"\" class=\"wp-image-47190\"\/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Effects of advanced paternal age on pregnancy<\/h2>\n\n\n\n<p>Paternal age is among the most significant factors affecting a couple\u2019s chance of conceiving and pregnancy outcomes. Men over the age of 35\u201340 typically experience a decrease in sperm health, which affects the following:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Pregnancy rates<\/h3>\n\n\n\n<p>Pregnancy rates decrease with paternal age. One study published in the journal <em>Human Reproduction<\/em> found that the likelihood of conception within 12 months was lower in older men, indicating decreased fertility in men aged 30 and above compared to those under 25.<sup>9<\/sup> Men will generally see a 52% decrease in fertility rate between their early 30s and their mid-to-late 30s.<sup>10<\/sup><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Time to conception<\/h3>\n\n\n\n<p>Compared to men 25 years or younger, men 45 years or older are 12.5 times more likely to take over two years to conceive.<sup>11<\/sup>&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Miscarriage risk<\/h3>\n\n\n\n<p>Pregnancy loss between the 6- and 20-week gestation period increases by 27% in fathers 35 years or older.<sup>12<\/sup> That risk doubles when fathers reach 50.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Adverse pregnancy outcomes<\/h3>\n\n\n\n<p>Pregnancies that involve a male over the age of 45 see an increased risk of birthing complications, and their offspring have an increased risk for adverse birth outcomes.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Offspring health risks<\/h3>\n\n\n\n<p>Studies show that older fathers may be more likely to have children with conditions including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>schizophrenia<\/li>\n\n\n\n<li>bipolar disorder<\/li>\n\n\n\n<li>autism<\/li>\n\n\n\n<li>Down syndrome<\/li>\n\n\n\n<li>childhood leukemia<sup>13 14 15<\/sup>&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>It is believed that random mutations in a man\u2019s sperm accumulate over the years. This can pass genetic mutations to a child and increase their chances of developing a psychological or neurocognitive disorder or chronic illness.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to improve male fertility with age<\/h2>\n\n\n\n<p>Aging is a natural process that can\u2019t be halted or reversed, but lifestyle changes have been found to improve sperm health. These include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eating a balanced, nutrient-rich diet<\/li>\n\n\n\n<li>Getting regular, moderate-intensity exercise<\/li>\n\n\n\n<li>Quitting smoking and vaping<\/li>\n\n\n\n<li>Getting adequate high-quality sleep (7 to 8 hours) nightly<\/li>\n\n\n\n<li>Drinking alcohol only in moderation<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Sperm freezing for fertility preservation<\/h2>\n\n\n\n<p>Male fertility is not unlimited. Although men produce sperm for life, fertility typically declines starting at age 35, impacting sperm quality, pregnancy outcomes, and child health. Lifestyle changes can help, but freezing sperm is the most effective option for long-term fertility preservation.<\/p>\n\n\n\n<p>Explore <a href=\"https:\/\/www.givelegacy.com\/sperm-testing-freezing-kit\/\">at-home sperm testing &amp; freezing kits<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">References<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>1. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6384148\/\">Petridou et al. \u201cAdvanced parental age as risk factor for childhood acute lymphoblastic leukemia,\u201d 201<\/a><\/li>\n<\/ol>\n\n\n\n<p>2. <a href=\"https:\/\/www.cdc.gov\/reproductive-health\/infertility-faq\/index.html\">Centers for Disease Control &amp; Prevention. \u201cInfertility: Frequently Asked Questions,\u201d 2024.&nbsp;<\/a><\/p>\n\n\n\n<p>3. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/7657747\/\">Mathieu et al. \u201cCumulative conception rate following intrauterine artificial insemination with husband&#8217;s spermatozoa: influence of husband&#8217;s age,\u201d 1995.&nbsp;<\/a><\/p>\n\n\n\n<p>3. <a href=\"https:\/\/www.fertstert.org\/article\/S0015-0282(13)00687-0\/fulltext\">Stone et al. \u201cAge thresholds for changes in semen parameters in men,\u201d 2013.&nbsp;<\/a><\/p>\n\n\n\n<p>4. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/7816062\/\">Auger et al. \u201cDecline in semen quality among fertile men in Paris during the past 20 years,\u201d 1995.&nbsp;<\/a><\/p>\n\n\n\n<p>5. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/16793993\/\">Sloter et al. \u201cQuantitative effects of male age on sperm motion,\u201d 2006.&nbsp;<\/a><\/p>\n\n\n\n<p>6. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17430422\">Levitas et al. \u201cRelationship between age and semen parameters in men with normal sperm concentration: analysis of 6022 semen samples,\u201d 2007.&nbsp;<\/a><\/p>\n\n\n\n<p>7. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC3253726\/\">Harris et al. \u201cFertility and the Aging Male,\u201d 2011.&nbsp;<\/a><\/p>\n\n\n\n<p>8. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC6030011\/\">Yatsenko et al. \u201cReproductive genetics and the aging male,\u201d 2018.&nbsp;<\/a><\/p>\n\n\n\n<p>9. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/10920089\/\">Ford et al. \u201cIncreasing paternal age is associated with delayed conception in a large population of fertile couples: evidence for declining fecundity in older men. The ALSPAC Study Team (Avon Longitudinal Study of Pregnancy and Childhood),\u201d 2000.&nbsp;<\/a><\/p>\n\n\n\n<p>10.<a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/7657747\/\">Mathieu et al. \u201cCumulative conception rate following intrauterine artificial insemination with husband&#8217;s spermatozoa: influence of husband&#8217;s age,\u201d 1995.&nbsp;<\/a><\/p>\n\n\n\n<p>11. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12801554\">Hassan et al. \u201cEffect of male age on fertility: evidence for the decline in male fertility with increasing age,\u201d 2003.&nbsp;<\/a><\/p>\n\n\n\n<p>12. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC7456349\/\">Foss\u00e9 et al. \u201cAdvanced paternal age is associated with an increased risk of spontaneous miscarriage: a systematic review and meta-analysis,\u201d 2020.&nbsp;<\/a><\/p>\n\n\n\n<p>13. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC4457665\/\">Malaspina et al. \u201cPaternal age and mental health of offspring,\u201d 2016.&nbsp;<\/a><\/p>\n\n\n\n<p>14. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12771769\/\">Fisch et al. \u201cThe influence of paternal age on down syndrome,\u201d 2003.&nbsp;<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stories of men in their 60s or older fathering children tend to fuel the idea that male fertility is eternal, but that\u2019s a misconception. Men also experience the effects of aging with a decrease in fertility over time. To some extent, men\u2014just like women\u2014face a biological clock.<\/p>\n","protected":false},"author":14,"featured_media":13180,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Age & male fertility \u2014 Is there an age limit to producing sperm? | Legacy Sperm Experts","_seopress_titles_desc":"Stories of men in their 60s or older fathering children tend to fuel the idea that male fertility is eternal, but that\u2019s a misconception. Men also experience the effects of aging with a decrease in fertility over time. To some extent, men\u2014just like women\u2014face a biological clock.","_seopress_robots_index":"","footnotes":""},"categories":[6,45,61,10,18,114,136,239,125,210,70,35],"tags":[165,189,250,13,14,86,32],"class_list":["post-15243","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-age-male-fertility","category-considering-vasectomy","category-infertility","category-freezing-sperm","category-improving-sperm-health","category-male-fertility-basics-understanding-male-health","category-male-fertility-basics","category-male-fertility-basics-vasectomy-2","category-medical-infertility","category-medical","category-trying-to-conceive","category-understanding-male-health","tag-aging","tag-hormones","tag-male-biological-clock","tag-male-factor-infertility","tag-paternal-age","tag-sperm-quality","tag-testosterone"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts\/15243"}],"collection":[{"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15243"}],"version-history":[{"count":10,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts\/15243\/revisions"}],"predecessor-version":[{"id":47197,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts\/15243\/revisions\/47197"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/media\/13180"}],"wp:attachment":[{"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15243"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15243"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}