Does frequent ejaculation help ward off prostate cancer?

Does frequent ejaculation help ward off prostate cancer?

Marc Garnick, M.D., Editor in Chief of Harvard Medical School’s Annual Report on Prostate Diseases, says:

Two relatively large studies of this question, reported in 2003 and 2004, yielded good news for sexually active men: high ejaculation frequency seemed to protect against prostate cancer.

As part of Harvard’s Health Professionals Follow-up Study, 29,342 men between the ages of 46 and 81 reported their average number of ejaculations per month in young adulthood (ages 20–29), in mid-life (ages 40–49), and in the most recent year. Ejaculations included sexual intercourse, nocturnal emissions, and masturbation. Study participants also provided comprehensive health and lifestyle data every two years from 1992 to 2000. The scientists found that men who ejaculated 21 or more times a month enjoyed a 33% lower risk of prostate cancer compared with men who reported four to seven ejaculations a month throughout their lifetimes.

An Australian study of 2,338 men came to a similar conclusion. In all, men who averaged 4.6 to seven ejaculations a week were 36% less likely to be diagnosed with prostate cancer before the age of 70 than men who ejaculated less than 2.3 times a week on average. The study found no connection between prostate cancer and the number of sex partners. (An earlier study, however, found that men who had sex with 30 or more women were two to three times more likely to develop prostate cancer than men with only one partner.)

Further study is needed to investigate possible protective mechanisms. In theory, emptying the prostate of potentially irritating or harmful substances might be one such mechanism. Regardless of the reason why, take comfort in the fact that ejaculation is not only pleasurable, but also may convey health benefits.

SOURCES: Leitzmann MF, Platz EA, Stampfer MJ, et al. Ejaculation Frequency and Subsequent Risk of Prostate Cancer. Journal of the American Medical Association 2004;291:1578–86. PMID: 15069045.

Giles GG, Severi G, English ER, et al. Sexual Factors and Prostate Cancer. BJU International 2003;92:211–16. PMID: 12887469.

Originally published April 2009; last reviewed February 24, 2011.

Billy I he nacho Ernest

I ve gone through your write up on prostrate cancer. Please I still wsnt to be convinced that constant sex or ejaculations can cause prostrate cancer

Nurse Marie

All you have to do is google prostate health and ejaculation frequency” and you will have lots of article to “convince” you. It makes sense that men should masturbate to empty their testicles of old semen. Just be sure you are getting enough zinc in your diet because each ejaculation lowers that mineral which is essential to many functions in the body, including your sexual health.

[…] feedback. I also read an article that says frequent ejaculation can be good for prostate health. Does frequent ejaculation help ward off prostate cancer? – Harvard Prostate Knowledge – Harvard Heal… I feel more at ease with the whole prospect, but I'm still curious if anyone know One thing still […]

mathias leblanc

i am fucking twice weekly by using vacurect to harden my seems to be working because when 1 took an a1c test it sho, which was 4.0.


i diagnosed with chronic prostatitise in 2009 still i suffered and struggle with symtomse i am only 27 and i hade symtomse from my teenage age low sex drive erectil dysfunction and low sperm is my symtom anuse pain frequent urination

Jacques Cousteau

I’m so sorry to hear about your father.

I hope he’s fighting it hand and fist. I hope we all are

Name: Gordon L. Brown Email:

My belief is that semen is a bodily fluid, and passing it through wet dreams or masturbation is a healthy deterrent to becoming a sexually famished pervert… getting it out of the system helps a man relax if he chooses a solitary lifestyle. The religions that say masturbation is a sin are leading many men into health problems but this issue is not met head on by health professionals with them. The condom solved much in this direction; now it is up to the medical profession to present data to remove masturbation as a sinful act… many religious followers live with this taboo and I can say that it weighs heavily on keeping a clear and concentrated mind at work.
My point in essence is that the world may have to have a religious-medical series of meetings to clarify matters…. after all, apart from adultery, the Ten Commandments do not get involved in sexual matters, and as far as I recall, neither did Jesus. Thanks for reading me.

john doe

Calling out a couple of posts here.

Best advice by Nurse Marie, thank you.

And Gordon Brown, you have made a great point in your post.

men from far east

Umm just want to ask if how long would it take to know that male semen is old?pls I want a clear asnwer


i had psa screening number was 4 for some time. 2yrs later having being screened every 6 months my count went down every time 3.9 3.6 3.2 now it is 3.0 ..i put this down to
changing frequency of ejaculation to at least 6 times a week
my dad died of p.c. he got his first screening at 70yrs but it was too late,hadnt had any symptoms, but past away 3 yrs later…figured it had been with him for at least 15 yrs
didnt need to die,
early detection is the key . GET SCREENED, I started at
40 yrs of age, now 56


I’m agree what Mr Gordan Brown Mentioned about his theory.The ways and ideas he’s giving is exactly brilliant and logic.


Didn’t help me. I usually ejaculated two to four times a day, either with the wife (preferably!) or without. Still got aggressive prostate cancer.

Post a Comment

This blog aims to provide reliable information as well as healthy dialog about the topics covered. We reserve the right to remove comments for any reason, particularly those that do not relate directly to the contents of this post, are commercial in nature, contain objectionable or inappropriate material, or otherwise violate our Privacy Policy. Comments on this blog do not represent the views of our editors or Harvard University, and have not been checked for accuracy. All comments submitted to this site become the non-exclusive property of Harvard University.