Cases have been reported from many different countries around the world. It is difficult to estimate the prevalence of ORS in the general population because data are limited and unreliable, and due to the delusional nature of the condition and the characteristic secrecy and shame. For unknown reasons, males appear to be affected twice as commonly as females. High proportions of ORS patients are unemployed, single, and not socially active. The average age reported is around 20–21 years, with almost 60% of cases occurring in subjects under 20 in one report, although another review reported an older average age for both males (29) and females (40).
Olfactory reference syndrome
Olfactory fatigue
Oneirophrenia
Skoptic syndrome
Auditory processing disorder
Uncombable hair syndrome
Auditory neuropathy spectrum disorder
Dual-role transvestism