Relationship between blood group and epistaxis among Nepalese.

The relationship between blood group and epistaxis among the patients coming to Tribhuvan University Teaching Hospital, Kathmandu with idiopathic epistaxis was studied. A total of 235 patients coming to the Emergency Department or Department of Otorhinolaryngology with active nose bleeding in were included. ABO blood group was performed. Nearly half (45.5%) of the patients belonged to O-group followed by A-group others. O-group people were also had longer bleeding time compared to other blood groups.