A 2001 review stated that humans regularly receive 1,000 to 10,000 times greater nitrosamine exposure from food and tobacco than from condom use and concluded that the risk of cancer from condom use is very low.
2001年發表的一項回顧指出，人類定期從食物和煙草中攝入的亞硝胺量高於從避孕套攝入的1,000至10,000倍，並因此得出結論，認為避孕套致癌的風險非常低。