[Epidemiological notes on nasal bleeding].

The incidence of epistaxis is difficult to calculate because only a 10% of them look for medical attention. In this study the nasal bleeding means the 13.3% of the ENT emergencies (279 patients). Its incidence was 6 cases/10,000/year. The majority were over 50 years old (57.3%). There was season variations. The anterior epistaxis were more frequent but he posterior ones increased over the 40. An 18% had rebleeding more significatively with age and localization. We discuss the mechanisms that can explain the male dominance, the season incidence, and the old ages of the patients with hospital epistaxis.