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背景输精管结扎术是最有效地控制生育的方法之一。目前世界大约有5千万人使用这个方法。最近在美国和英国进行的一些流行病学研究表明,输精管结扎术有可能使患前列腺癌和睾丸癌的危险性增加。然而其他一些研究并未得出相同的结论。鉴于目前有相当数目的男性使用此方法,并且前列腺癌在老年男子死亡中占有相当数目的事实,任何有关输精管结扎术安全性的疑虑都是人们十分关注的问题。尽管睾丸癌并不常见,但由输精管结扎术导致其发病率增加
Background Vasectomy is one of the most effective ways to control fertility. About 50 million people in the world use this method. Some recent epidemiological studies in the United States and the United Kingdom have shown that vasectomy may increase the risk of prostate and testicular cancer. However, other studies did not reach the same conclusion. Given the number of men currently using this method and the fact that prostate cancer accounts for a significant number of elderly men, any doubts about the safety of vasectomy are of great concern. Although testicular cancer is uncommon, its incidence is increased by vasectomy