Definitions[ edit ] In common parlance, the word fetish is used to refer to any sexually arousing stimuli, not all of which meet the medical criteria for fetishism. The publication of the DSM-III in changed that by excluding arousal from body parts in its diagnostic criteria for fetishism. Less popular groups focused on navels navel fetishism , legs, body hair, mouth, and nails, among other things. Less popular object groups focused on headwear, stethoscopes, wristwear, and diapers diaper fetishism. Fetishism usually becomes evident during puberty, and may develop prior to that. In several experiments, men have been conditioned to show arousal to stimuli like boots, geometric shapes or penny jars by pairing these cues with conventional erotica.