Halitosis is a frustrating condition that can lead to significant discomforts, negative social and psychological effects including social interaction suppression and self-confidence diminution. The purpose of the study was to assess the social distance attitude towards halitosis sufferers in Nigeria. A cross-sectional survey was carried out among young adult Nigerians recruited from University of Benin, Benin City, Nigeria, as part of a larger-scale halitosis-relational survey. Information obtained were age, gender and social distance attitude. The social distance attitude was measured with the Halitosis Social Distance Scale (HSDS) which was modelled after the seven-item modified Bogardus Social Distance Scale. A total of 370 out of 400 questionnaires distributed were returned giving a 92.5% participation rate. About one quarter of the participants (23.0%) reported high social distance towards halitosis sufferers. The level of social distance towards halitosis sufferers was seen to...