Heywood Wendy, Smith Anthony M A
Australian Research Centre in Sex, Health & Society, La Trobe University, Melbourne, Australia.
Sex Health. 2012 Dec;9(6):517-26. doi: 10.1071/SH12014.
Anal sex is known to be an important risk factor for anal cancer. Yet compared with vaginal intercourse, little is known about anal sex practices in either heterosexual or male homosexual populations. Of the data that are available, it appears a significant and increasing minority of heterosexuals have ever practised anal intercourse. Among homosexual men, most, but not all, report anal sex, with large proportions of men engaging in both insertive and receptive anal intercourse. The most significant finding of the review was the dearth of population-based data, particularly relating to homosexual men.
肛交被认为是肛门癌的一个重要风险因素。然而，与阴道性交相比，无论是异性恋还是男同性恋人群中的肛交行为都鲜为人知。就现有数据而言，似乎有相当一部分且数量在不断增加的异性恋者曾有过肛交行为。在男同性恋者中，大多数（但并非全部）报告有肛交行为，很大一部分男性既进行插入式肛交也进行接受式肛交。该综述最显著的发现是缺乏基于人群的数据，尤其是与男同性恋者相关的数据。
