Epistaxis, or a nosebleed, occurs when blood vessels inside the nose become injured or damaged, causing bleeding from the nostril. The majority of nosebleeds originate from the front of the nose but can also occasionally come from further back. Nosebleeds are generally caused by local trauma, infections, medications, or underlying medical conditions. Treatment depends on the location and severity of the bleeding but may involve cauterization, nasal packing, medications to constrict blood vessels, or further procedures if bleeding does not stop. At home care focuses on rest, limiting straining, and preventing rebleeding.