Genital self-mutilation is extremely rare. The majority of causes of self-mutilation documented in the literature are mental disorders. Castration, however, was also performed for other reasons. Throughout the history of castration, during the era of absolute monarchy, eunuchs serving the emperor were castrated to prevent sexual contact with court ladies. The church prohibited women from singing, men needed a soprano range, which was called castrati. Castration for religious reasons has been practiced for a long time. We report a case in which self-castration was performed for religious reasons.