RÉSUMÉ
Introduction: It's approximated that 60% of the population globally experience epistaxis during lifetime. Despite epistaxis being prevalent in Tanzania, there are limited studies that have explored experience of participants on epistaxis. This study aims to determine knowledge on the causes, first aid management and practices of epistaxis among patients attending a health facility in Eastern Tanzania Methods: A descriptive cross-sectional study was conducted where 371 participants aged 15 years and above were interviewed using structured questionnaires. Data was analyzed using Statistical Package of Social Sciences version 23. Chi-square tests were performed and a p-value <0.05 was considered to be statistically significant Results: About two-thirds (60.9%) of the study participants had good knowledge of the causes of epistaxis. Majority of participants knew excessive nose manipulation (95.1%) to be the commonest cause of epistaxis and the least cause mentioned was chronic liver disease (24.8%). On the other hand, 77.6% of the participants had good knowledge while 22.4% had poor knowledge regarding first aid management of epistaxis. In this study, 328 (88.4%) participants knew pressing the nose could stop epistaxis, while 164(44.2%) knew the best position to stop epistaxis and that is to tilt the head forward and those who had history of epistaxis, 150 (73.2%) out of 205 pinched the nose as the first aid. Similarly, 133(35.8%) participants thought cessation of smoking has effect on decreasing the occurrence of epistaxis. A significant association was noted between knowledge of first aid management of epistaxis and some socio-demographic characteristics such as age and educational level. There was also a significant association between knowledge of the causes of epistaxis and educational level. Conclusion: Majority of the participants had good knowledge of the causes and first aid management of epistaxis.