Medical history and medical practice: persistent myths about the foreskin.

Although many 19th-century misconceptions about the foreskin have been dispelled since it was shown that infantile phimosis was not an abnormality, the ideas that ritual or religious circumcision arose as a hygiene measure, and that circumcision makes no difference to sexual response, have persisted. The first idea should be dismissed as a myth and the second has been seriously questioned by modern research.