What causes a sudden nosebleed out of nowhere?
1. Introduction A sudden nosebleed out of nowhere, clinically termed epistaxis, is most frequently caused by the spontaneous rupture of delicate blood vessels in the anterior nasal septum due to environmental desiccation, minor mechanical trauma, or underlying vascular fragility. The nasal cavity is lined with a highly vascularized mucosal membrane that continuously warms and humidifies … Read more