Japanese Doctor: Frequent Ejaculation May Lower Prostate Cancer Risk, Debunking Myths

A popular Japanese urologist is challenging long-held beliefs about male sexual health, asserting that frequent ejaculation may actually protect against prostate cancer. Dr. Katsumasa Higuchi, known online as 'Hikawa Sensei,' explained on his popular YouTube channel that the notion of "too much sex leading to cancer" is a misconception.

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If you find abnormal ejaculation function or blood in your urine, you should seek medical attention as soon as possible.

Dr. Higuchi referenced a 2016 U.S. study involving over 32,000 men. The research indicated that men ejaculating 21 times or more per month (approximately five times a week) had a 20% lower risk of developing low-risk prostate cancer compared to those ejaculating between four and seven times monthly. This finding directly contradicts the traditional idea that abstaining from ejaculation is healthier.

While a direct causal link remains unproven, medical professionals theorize that regular ejaculation might help flush out potential carcinogens accumulated in the prostate fluid. Another theory suggests it could help regulate the autonomic nervous system by reducing sympathetic nerve activity and promoting relaxation.

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Ejaculating frequently not only does not cause prostate cancer but can actually achieve 'prevention,' breaking the myth that 'abstaining from ejaculation is better for the body.'

However, Dr. Higuchi cautioned that the study predominantly featured white participants, with over 91% being Caucasian. The applicability of these findings to Asian men, who typically ejaculate less frequently, remains an open question. He speculates that an average frequency of two to three times per week might be sufficient for Asian men.

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If men do not ejaculate for a long time, carcinogens may accumulate in the fluid and precipitate in the prostate. Ejecting them regularly can reduce the chance of cancer.

Dr. Higuchi shared a clinical case of a man in his 50s who sought medical help for an inability to ejaculate and blood in his urine. The patient was diagnosed with prostate cancer, which, fortunately, had not yet metastasized. The doctor stressed that an inability to ejaculate can be a significant warning sign for prostate cancer and urged men experiencing such symptoms or blood in their urine to consult a urologist promptly.

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The study's subjects were over 91% white, and the conclusion is best suited for 'white people.' Whether Asian people also need to reach the high frequency of 'more than 5 times a week' to be effective is still debatable.