Epistaxis is the medical term for a nosebleed. The nose contains numerous blood vessels and is located in a vulnerable spot on the face, making it prone to bleeding after any facial injury, which can be severe. Nosebleeds might also happen on their own when the nasal membranes become dry, form crusts, and crack—this often occurs in arid climates or during winter when indoor air is dry and heated. Individuals taking blood-thinning medications like warfarin (Coumadin), clopidogrel bisulfate (Plavix), aspirin, or other anti-inflammatory drugs are more prone to nosebleeds. Additional risk factors include infections, trauma, allergies, alcohol abuse, and genetic bleeding disorders. The term "epistaxis" originates from the Greek word meaning "a dripping," particularly referring to blood from the nose.
