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ZurückStudy: Over 21 Ejaculations Per Month May Reduce Risk of Low-Risk Prostate Cancer
Study: Over 21 Ejaculations Per Month May Reduce Risk of Low-Risk Prostate Cancer
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自由时报13.6.2026Gesundheit2 Min. LesezeitChina

Study: Over 21 Ejaculations Per Month May Reduce Risk of Low-Risk Prostate Cancer

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  • A large-scale study from Harvard University suggests that men ejaculating over 21 times per month may have a 19-22% lower risk of developing low-risk prostate cancer.
  • However, frequent ejaculation showed no significant protective effect against high-risk or metastatic prostate cancer.
  • Urologist Huang Po-jen emphasizes that this is an observational study showing correlation, not causation, and advises against deliberately altering ejaculation frequency for cancer prevention.

KI-generierte Zusammenfassung

Schriftgröße

2026/06/13 21:10

研究指出:男士若能做到射精超過21次,能預防攝護腺癌。示意圖。(圖取自shutterstock)

〔健康頻道/綜合報導〕有國外研究提到:男士若能做到射精超過21次,能預防攝護腺癌。泌尿科醫師黃柏仁在臉書粉專「黃柏仁 醫師」表示,不少人詢問「聽說一個月射精超過21次可以預防攝護腺癌,真的嗎?」在門診的時候,曾有患者問了我這個「江湖傳言」,這樣的說法也非空穴來風,這源自於哈佛大學於2016年發表在《歐洲泌尿科醫學會期刊》(Impact factor:23.4) 的一篇大型研究,這項研究追蹤了超過3萬名男性,時間長達18年,針對「射精頻率與攝護腺癌風險」進行長期觀察。

黃柏仁表示,這項研究使用了著名的「健康專業人員隨訪研究」(HPFS) 數據,結果顯示:每月射精超過21次的男性,相較於每月4–7次者,「低風險攝護腺癌」的發生率降低約19%~22%。但關鍵點在於:對於「高風險」或「轉移性」攝護腺癌,頻繁射精並沒有顯著的保護效果。

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黃柏仁表示,這是「預防攝護腺癌」的黃金準則嗎?答案是:還不行!黃柏仁提出研究不足之處。

1. 觀察性研究的侷限:這份研究屬於「觀察性研究」,雖然,嚴謹且規模大,但它只能顯示「相關性」,無法直接斷定「因果關係」。

2. 別忽略細節:研究重點在於「低風險」癌別,若單純為了預防癌症而刻意改變射精頻率,目前醫學界並未將此納入正式建議。

黃柏仁提出2大方式預防攝護腺癌。

1. 健康生活方式:健康的生活習慣,如:平衡飲食、規律運動、戒菸限酒,對維持整體健康和降低多種癌症風險均有幫助。

2. 定期檢查:攝護腺癌的早期檢測和篩查,如前列腺特異性抗原(PSA)檢測和肛門指診檢查,對高風險男性(如有家族病史者)尤為重要。

相關新聞請見

健康網》愛護攝護腺!網紅醫:哈佛研究 多射精遠離癌症

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This article was originally published by 自由时报.

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