Does ejaculation protect against prostate cancer?
One American study published in 2016 found that men who reported more than 21 ejaculations per month had a 31 percent lower risk of prostate cancer than men who reported four to seven ejaculations a month. So does ejaculation protect against prostate cancer? Other studies looking for a link between ejaculation frequency and prostate cancer have yielded conflicting results, however. Still, sex is good for your health, so enjoy it!
For reasons not fully known, ejaculating more may lower the risk of prostate cancer.
Ejaculating after all, based upon some studies, through sexual intercourse or masturbation, does not seem to protect against higher-risk prostate cancers. The studies do not sort out between ejaculating during sexual intercourse or masturbation, and the effect of each on prostate cancer.
One study followed 32,000 men for 18 years in the US. It found men who ejaculated the most (at least 21 times a month) had a 20% lower chance of prostate cancer vs. those who ejaculated 4 to 7 times a month. The more the number increased per month, the lower their risk. Other studies have found ejaculation rate has no impact on prostate cancer rates.
Ejaculation may protect the prostate by flushing out harmful chemicals that build up in semen. It is also possible ejaculation does not actually protect against prostate cancer. Men who ejaculate more may have healthier lifestyle habits that decrease their odds of being diagnosed with the disease. Additionally, ejaculating may only reduce the risk in men in certain age groups.
The bottom line is more research is needed before we know for sure whether more ejaculation reduces the risk of prostate cancer.
Sources and references
European Urology: "Ejaculation Frequency and Risk of Prostate Cancer.”
Harvard Health Publications, Harvard Medical School: “Ejaculation Frequency and Prostate Cancer.”
Sexual Medicine Reviews: "Evidence for Masturbation and Prostate Cancer Risk: Do We Have a Verdict?"
Urologic Oncology: "Ejaculatory frequency and the risk of aggressive prostate cancer: Findings from a case-control study."
Journal of Sexual Medicine: “The Relative Health Benefits of Different Sexual Activities.”
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