{"id":6617,"date":"2025-05-23T20:42:36","date_gmt":"2025-05-23T20:42:36","guid":{"rendered":"https:\/\/givelegacy.com\/?p=6617"},"modified":"2025-06-02T21:50:35","modified_gmt":"2025-06-02T21:50:35","slug":"fever-sperm-quality-and-fertility","status":"publish","type":"post","link":"https:\/\/www.givelegacy.com\/resources\/fever-sperm-quality-and-fertility\/","title":{"rendered":"How fever affects sperm quality and production"},"content":{"rendered":"\n<p>If you get the flu, COVID-19, or another illness, you might experience a fever \u2014 an unpleasant&nbsp; but temporary increase in body temperature. Fevers usually last a few days at the most, but getting a fever can impact sperm health and fertility for long after you\u2019ve started feeling better. That\u2019s a potentially important consideration if you\u2019re planning to conceive, get a semen analysis, or freeze your sperm. Let\u2019s take a closer look at the research.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Key takeaways<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A fever can temporarily but significantly impact sperm production and quality.<\/li>\n\n\n\n<li>Fever can impact sperm for 2\u20134 months. Sperm quality generally recovers after one to two full cycles of sperm production (about 72\u201390 days post-fever).<\/li>\n\n\n\n<li>Prolonged high fevers (above 101\u00b0F, lasting several days) have a more negative effect on sperm health than shorter or milder fevers.<\/li>\n\n\n\n<li>Short-lived fevers from vaccinations (e.g., COVID-19) don&#8217;t seem to impact sperm quality.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\" style=\"margin-top:var(--wp--preset--spacing--50);margin-bottom:var(--wp--preset--spacing--50)\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Can a fever impact your sperm?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/8kIqzEhGAxo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What is a fever?<\/h2>\n\n\n\n<p>A fever is a temporary but significant increase in core body temperature. Normal temperature is about 98.6\u00baF; a fever is generally defined as 100\u00baF or higher. Fever isn&#8217;t considered an illness in itself. It&#8217;s an immune system response in which the body elevates body temperature to kill viruses, bacteria, or other pathogens. Common causes of fever include the flu, pneumonia, <a href=\"https:\/\/givelegacy.com\/resources\/covid-19-male-fertility\/\">COVID-19<\/a>, heat exhaustion, food poisoning, and infections. An illness accompanied by fever is known as \u201cfebrile illness.\u201d<\/p>\n\n\n\n<p>No matter how healthy you are, you\u2019re bound to occasionally get a fever. So how does fever impact your fertility? Does a fever kill sperm? Does getting a fever cause any permanent damage to your sperm quality or production?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How body heat affects sperm production<\/h2>\n\n\n\n<p>Sperm production, known as spermatogenesis, is sensitive to heat. Ideally, sperm production occurs at about 93.2\u00baF, about 5\u00baF below normal body temperature. This is why the testicles hang below the body \u2014 to keep the temperature a bit lower. (It\u2019s also why the \u201cheight\u201d of your scrotum may change on cooler and warmer days.)<\/p>\n\n\n\n<p>When the temperature of the scrotum or testicles increases, which can happen when you get a fever, sperm production may be impaired significantly. This can lead to fewer sperm and lower-quality sperm with more genetic abnormalities.<\/p>\n\n\n\n<p>Increased scrotal heat can impact sperm production and impair sperm count and quality. In one study, it was found that scrotal heat exposure led to severe reproductive impairment, increasing sperm DNA damage and apoptosis (cell death). Another study found that even a mild rise in testicular temperature significantly increased abnormalities in the DNA inside sperm and significantly decreased normal morphology, a result of disruptions in spermatogenesis.<\/p>\n\n\n\n<p>Research has found that frequently holding laptops on the lap or spending time in saunas can raise the temperature of the scrotum enough to reduce sperm quality temporarily \u2014&nbsp;more evidence that sperm production is sensitive to heat.<\/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-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2021\/12\/fever-male-fertility-recovery-1024x683.png\" alt=\"\" class=\"wp-image-6619\" srcset=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2021\/12\/fever-male-fertility-recovery-1024x683.png 1024w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2021\/12\/fever-male-fertility-recovery-300x200.png 300w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2021\/12\/fever-male-fertility-recovery-768x512.png 768w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2021\/12\/fever-male-fertility-recovery-1536x1025.png 1536w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2021\/12\/fever-male-fertility-recovery.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/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 fever affects sperm quality parameters<\/h2>\n\n\n\n<p>Multiple studies have found that a sickness that comes with a fever can significantly reduce sperm count and quality, especially when it\u2019s a fever over 101\u00baF experienced for multiple days.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fever and sperm count<\/h3>\n\n\n\n<p>First, a few important things to understand about fever and sperm count: Sperm count refers to the total number of sperm in the semen. Sperm concentration is the number of sperm per milliliter of semen. Sperm production has a cycle of about 72 days from start to finish.<\/p>\n\n\n\n<p>In a study that observed five men who had fevers of 102.2\u00baF or greater for 3 or more days, sperm concentration declined up to 7% within 6 weeks following the fever. In one case report, it was found that total sperm count was significantly decreased for up to 2 months after a 2-day fever of 102\u2013104\u00baF. Another case report of an infertility patient had a similar outcome: sperm concentration dropped to less than half of its original measure just after the fever was resolved.<\/p>\n\n\n\n<p>Another study followed 27 healthy, fertile men with monthly semen analyses. This research reported a 32\u201335% decrease in sperm concentration for men who experienced febrile illness. This study also found that the number of days the men experienced a fever significantly affected their semen parameters, with a reduced sperm concentration of up to 8.5% per day of fever.&nbsp;<\/p>\n\n\n\n<p>Remember that sperm production takes about three months. The full effects of fever on sperm count may not appear until 2\u20133 weeks after the illness. That\u2019s important to keep in mind when planning a semen analysis or interpreting the results.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fever and sperm motility<\/h3>\n\n\n\n<p>Sperm motility refers to the percentage of sperm that are moving or \u201cswimming.\u201d Motile sperm are essential for successful fertilization, because immotile sperm are generally not capable of reaching or penetrating an egg.<\/p>\n\n\n\n<p>In one study, it was observed that sperm motility was decreased for over a month post-fever. This observation is supported by the aforementioned study analyzing the effects of fever on 27 fertile men, which found that the percentage of immotile (non-moving) sperm was increased by 20.4% following fever \u2014 with an increase of 4.5% per day of fever.<\/p>\n\n\n\n<p>The previously mentioned study of five febrile men also found a decrease in what\u2019s known as \u201cprogressive motility,\u201d the ability of a sperm to move efficiently (i.e., in straight lines or large circles as opposed to tight circles). There was a decrease in progressive motility of up to 23% around 6 weeks post-fever.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fever and sperm morphology<\/h3>\n\n\n\n<p>Sperm morphology refers to the percentage of sperm that are the proper size, shape, and structure. Fever can cause morphology to decline. One study found that the percentage of morphologically normal sperm may decrease by over 7% post-fever. Another study was able to get even more specific, finding a significant increase in the number of sperm with abnormally small heads following a fever.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fever and sperm DNA fragmentation<\/h3>\n\n\n\n<p>Sperm DNA fragmentation is a measure of the percentage of sperm that contain damaged or abnormal genetic material. High levels of DNA fragmentation have been associated with lower fertilization rates, impaired embryo development, and higher risk of miscarriage.<\/p>\n\n\n\n<p>One study analyzed the semen sample of a fertile patient who had the flu with a 1-day fever. The sample was analyzed at 18\u201366 days post fever. At 18 days post fever, 36% of the sperm analyzed demonstrated damaged DNA \u2014 considered a high, abnormal level of sperm DNA fragmentation. Another study found severe damage to sperm DNA structure in a fertile patient who had a 2-day fever of 102.2\u00baF\u2013104\u00baF.<\/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-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2022\/05\/vaccines-and-male-fertility-fever-sperm-DNA-fragmentation-1-1024x683.jpg\" alt=\"\" class=\"wp-image-15925\" srcset=\"https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2022\/05\/vaccines-and-male-fertility-fever-sperm-DNA-fragmentation-1-1024x683.jpg 1024w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2022\/05\/vaccines-and-male-fertility-fever-sperm-DNA-fragmentation-1-300x200.jpg 300w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2022\/05\/vaccines-and-male-fertility-fever-sperm-DNA-fragmentation-1-768x512.jpg 768w, https:\/\/www.givelegacy.com\/vnext\/wp-content\/uploads\/2022\/05\/vaccines-and-male-fertility-fever-sperm-DNA-fragmentation-1.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/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\">So, can getting sick affect my fertility?<\/h2>\n\n\n\n<p>Yes, it\u2019s certainly possible. Illnesses with fever can temporarily, but significantly, affect your fertility. This may especially be true for people who already have low sperm count or motility, as any additional decrease can further impact chances of conceiving.<\/p>\n\n\n\n<p>Several of the above studies have looked at real-world cases of fever-causing illness, such as influenza or strep throat, and found that they caused a drop in sperm count and quality. Other fever-causing illnesses such as COVID-19 have been shown to significantly impair sperm production, at least in the short term. A 2023 study found that men who\u2019d recently had COVID-19 had inflammatory markers in their semen and \u201csignificantly reduced semen volume, lower total sperm counts, and impaired sperm motility and viability,\u201d but these resolved after 1\u20132 cycles of spermatogenesis. \u201cAll observed alterations returned to baseline values after 3 or more months after disease recovery,\u201d the scientists wrote.&nbsp;<\/p>\n\n\n\n<p>Learn more about <a href=\"https:\/\/www.givelegacy.com\/resources\/covid-19-male-fertility\/\">COVID-19 and male fertility<\/a>.<\/p>\n\n\n\n<p>However, a short-term or mild fever isn\u2019t likely to have a significant effect. In one study, researchers found no impact on sperm production with a scrotal temperature increase of less than 2\u00baF. In another, researchers found that the impact was directly related to how long the fever persisted \u2014 fevers lasting several days had a more dramatic effect on sperm quality than shorter fevers that lasted less than a day.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Can getting a vaccine affect my fertility?<\/h2>\n\n\n\n<p>Some vaccines, such as the COVID-19 vaccine, may cause a slight fever after injection. This is part of the normal immune system response to vaccination. However, the fever caused by vaccination is much shorter and milder than the fever that\u2019s possible with infection, and it\u2019s less likely to impact sperm.<\/p>\n\n\n\n<p>Studies of the COVID-19 vaccine, for example, have shown that vaccination has no impact on sperm health. One study published in <em>JAMA<\/em> reported that healthy men had no statistically significant changes in sperm concentration, motility, or morphology after getting the mRNA COVID-19 vaccine.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How long will it take my sperm to recover from a fever?<\/h2>\n\n\n\n<p>The good news is that the effects of a fever on sperm production aren\u2019t permanent.&nbsp;<\/p>\n\n\n\n<p>One study of scrotal heating noted that the effects on sperm production were reversible and that normal sperm production could be recovered after two cycles of spermatogenesis. Case studies of patients with febrile illness have reported that normal sperm production resumed after anywhere from 20 to 45 to 79 days post-fever.<\/p>\n\n\n\n<p>So, if you\u2019ve recently had a bad fever, you can expect your sperm quality and production to return to pre-fever levels about two to four months post fever.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Should I do a semen analysis if I recently had a fever?<\/h2>\n\n\n\n<p>We don\u2019t recommend it, because the analysis may not be accurate. If you\u2019ve recently had a fever, it\u2019s a good idea to wait until at least two months after the fever has subsided.&nbsp;<\/p>\n\n\n\n<p>For the most accurate semen analysis, you may also want to abstain from ejaculation for 2\u20135 days before producing your sample. To learn more about how to prepare for a semen analysis test and what to expect, check out our <a href=\"https:\/\/givelegacy.com\/sperm-testing-guide\/\">guide to sperm testing<\/a>.<\/p>\n\n\n\n<p>Wondering if testing or freezing are right for you? Answer a few quick questions to find the best plan for a personalized plan:<\/p>\n\n\n<div class=\"gb-container gb-container-fc50b54a\">\n<div class=\"gb-container gb-container-342a4748\">\n\n<a class=\"gb-button gb-button-45004205 gb-button-text gb-button-a99fe650\" href=\"https:\/\/www.givelegacy.com\/find-your-plan\/\" target=\"_blank\" rel=\"noopener noreferrer\">Get my recommendation<\/a>\n\n<\/div>\n<\/div>\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:\/\/my.clevelandclinic.org\/health\/symptoms\/10880-fever\">Cleveland Clinic. \u201cFever,\u201d 2023.<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>2. <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1365-2605.1987.tb00356.x\">Mieusset et al. \u201cHyperthermia and human spermatogenesis: enhancement of the inhibitory effect obtained by \u2018artificial cryptorchidism\u2019,\u201d 1987.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>3. <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1111\/andr.12228\">Rao et al. \u201cTransient scrotal hyperthermia affects human sperm DNA integrity, sperm apoptosis, and sperm protein expression,\u201d 2016.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>4. <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1642431X18304030\">Abdelhamid et al. \u201cExperimental mild increase in testicular temperature has drastic, but reversible, effect on sperm aneuploidy in men: A pilot study,\u201d 2019.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>5. <a href=\"https:\/\/academic.oup.com\/humrep\/article-abstract\/20\/2\/452\/603276\">Sheynkin et al. \u201cIncrease in scrotal temperature in laptop computer users,\u201d 2005.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>6. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/11910858\/\">Jung et al. \u201cFever as etiology of temporary infertility in the man,\u201d 2001.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>7. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17434502\/\">Sergerie et al. \u201cHigh risk of temporary alteration of semen parameters after recent acute febrile illness,\u201d 2007.<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>8. <a href=\"https:\/\/www.annclinlabsci.org\/content\/43\/1\/94\/T1.expansion.html\">Andrade-Rocha. \u201cTemporary Impairment of Semen Quality Following Recent Acute Fever,\u201d 2013.<\/a><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17434502\/\">&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>9. <a href=\"https:\/\/academic.oup.com\/humrep\/article\/18\/10\/2089\/622725\">Carlsen, et al. \u201cHistory of febrile illness and variation in semen quality,\u201d 2013.<\/a>&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>10. <a href=\"https:\/\/academic.oup.com\/humrep\/article\/18\/10\/2089\/622725\">Carlsen, et al. \u201cHistory of febrile illness and variation in semen quality,\u201d 2013.<\/a>&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>11. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17434502\/\">Sergerie et al. \u201cHigh risk of temporary alteration of semen parameters after recent acute febrile illness,\u201d 2007.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>12. <a href=\"https:\/\/academic.oup.com\/humrep\/article\/18\/10\/2089\/622725\">Carlsen, et al. \u201cHistory of febrile illness and variation in semen quality,\u201d 2013.<\/a>&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>13. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/11910858\/\">Jung et al. \u201cFever as etiology of temporary infertility in the man,\u201d 2001.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>14. <a href=\"https:\/\/academic.oup.com\/humrep\/article\/18\/10\/2089\/622725\">Carlsen, et al. \u201cHistory of febrile illness and variation in semen quality,\u201d 2013.<\/a>&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>15. <a href=\"https:\/\/www.annclinlabsci.org\/content\/43\/1\/94\/T1.expansion.html\">Andrade-Rocha. \u201cTemporary Impairment of Semen Quality Following Recent Acute Fever,\u201d 2013.<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>16. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/19059901\/\">Zini et al. \u201cAre tests of sperm DNA damage clinically useful? Pros and cons,\u201d 2009.<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>17. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/10975421\/\">Evenson et. al. \u201cCharacteristics of human sperm chromatin structure following an episode of influenza and high fever: a case study,\u201d 2000.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>18. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17434502\/\">Sergerie et al. \u201cHigh risk of temporary alteration of semen parameters after recent acute febrile illness,\u201d 2007.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>19. <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/andr.13019\">Erbay et al. \u201cShort-term effects of COVID-19 on semen parameters: A multicenter study of 69 cases,\u201d 2021.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>20. <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC10366368\/\">Martinez et al. \u201cCOVID-19 associates with semen inflammation and sperm quality impairment that reverses in the short term after disease recovery,\u201d 2023.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>21. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/9240266\/\">Wang et al. \u201cEffect of increased scrotal temperature on sperm production in normal men,\u201d 1997.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>22. <a href=\"https:\/\/academic.oup.com\/humrep\/article\/18\/10\/2089\/622725\">Carlsen, et al. \u201cHistory of febrile illness and variation in semen quality,\u201d 2013.<\/a>&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>23. <a href=\"https:\/\/jamanetwork.com\/journals\/jama\/fullarticle\/2781360\">Gonzalez et al. \u201cSperm Parameters Before and After COVID-19 mRNA Vaccination,\u201d 2021.&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>24. <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1642431X18304030\">Abdelhamid et al. \u201cExperimental mild increase in testicular temperature has drastic, but reversible, effect on sperm aneuploidy in men: A pilot study,\u201d 2019<\/a>.<\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>25. <a href=\"https:\/\/www.annclinlabsci.org\/content\/43\/1\/94\/T1.expansion.html\">Andrade-Rocha. \u201cTemporary Impairment of Semen Quality Following Recent Acute Fever,\u201d 2013.<\/a><\/li>\n<\/ol>\n\n\n\n<ol class=\"wp-block-list\">\n<li>26. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/10975421\/\">Evenson et. al. \u201cCharacteristics of human sperm chromatin structure following an episode of influenza and high fever: a case study,\u201d 2000.&nbsp;<\/a>27. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/17434502\/\">Sergerie et al. \u201cHigh risk of temporary alteration of semen parameters after recent acute febrile illness,\u201d 2007.<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>If you get the flu, COVID-19, or another illness, you might experience a fever. It may surprise you to learn that getting a fever can impact sperm health and fertility for long after you feel better.<\/p>\n","protected":false},"author":14,"featured_media":6618,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"How fever affects sperm quality and fertility - Legacy Sperm Experts","_seopress_titles_desc":"If you get the flu, COVID-19, or another illness, you might experience a fever \u2014 an unpleasant  but temporary increase in body temperature. A fever can impact sperm health and fertility for long after you\u2019ve started feeling better.","_seopress_robots_index":"","footnotes":""},"categories":[178,18,210,35],"tags":[36,242,301,124,133],"class_list":["post-6617","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-covid-19-understanding-male-health","category-improving-sperm-health","category-medical","category-understanding-male-health","tag-covid-19","tag-fever","tag-flu","tag-illness","tag-increased-scrotal-temperature"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts\/6617"}],"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=6617"}],"version-history":[{"count":7,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts\/6617\/revisions"}],"predecessor-version":[{"id":47160,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/posts\/6617\/revisions\/47160"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=\/wp\/v2\/media\/6618"}],"wp:attachment":[{"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.givelegacy.com\/vnext\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}