Masturbation and prostate cancer

Some research suggests that regular ejaculation may lower the risk of prostate cancer, though doctors aren’t exactly sure why.

A 2016 study found the risk of prostate cancer decreased by about 20 percent in men who ejaculated at least 21 times a month. A 2003 study also discovered a similar link between frequent ejaculation and lower prostate cancer risk.

There’s no evidence, though, that ejaculating regularly protects against advanced prostate cancer.