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Lawrenceville, NJ (Dr Simone) – Men who reported frequent ejaculation in adult life had a lower risk for prostate cancer and prostatitis. One study involved 31,925 men (average age 59) in the Health Professionals Follow-up Study from 1992 to 2010. The men themselves reported the number of ejaculations for three periods of their lives: ages 20-29, ages 40-49, and one year before the questionnaire was given to them.

Overall, there was a 20% reduction in prostate cancer risk in men who ejaculated at least 21 times a month compared to those who ejaculated 4-7 a month. There was a 10% reduction in risk of prostate cancer for men 40-49 years old who reported 8-12 ejaculations per month; and a 20% reduction for those who reported 13-20 ejaculations per month.

The men with the highest frequency of monthly ejaculations (at least 21) ate more calories, drank more alcohol, contracted more sexually transmitted diseases, smoked more, and were less likely to have a prostate-specific antigen (PSA) blood test. These risk factors may have caused premature death from other causes before prostate cancer could have been detected.

Other studies show that men who ejaculate more have less prostatitis (inflammation of the prostate). Prostate cancer risk is 60-80% higher in men with prostatitis compared with healthy controls. And ejaculation is a treatment for men who do develop prostatitis.

1. Rider, et al.  Ejaculation Frequency and Risk of Prostate Cancer: Updated Results with an Additional Decade of Follow-up; Mar 2016. [http://www.europeanurology.com/article/S0302-2838(16)00377-8/abstract/ejaculation-frequency-and-risk-of-prostate-cancer-updated-results-with-an-additional-decade-of-follow-up].
2. Denis LK, et al. Epidemiologic assoication between prostatitis and prostate cancer.  Urology 2002; 60:78-83.
3. Jiang J, et al. The role of prostatitis in prostate cancer: meta-analysis. PLoS One. 2013; 8(12):e85179.   4. Yavascaoglu I, et al. Role of ejaculation in the treatment of chronic non-bacterial prostatitis.  Int J Urol. 1999 Mar; 6(3):130-4.

(c) 2017 Charles B. Simone, M.MS., M.D.