Nosebleeds or epistaxis are very common problems. Most people in the United States will experience nosebleeds at one time or another. But what causes nosebleeds? It is the result of drying out of the nasal membranes that causes the superficial blood vessels in the lining to bleed. It can be quite frightening and dramatic to see the blood dripping down your face. Sometimes the blood can go down the throat as well. This bleeding tends to be seasonal, usually occurring during the winter months as the heat from your furnace wreaks havoc with your nose causing dryness or crusting. Factors that can lead to nosebleeds include nose-picking (keep your fingers away and cut your kids fingernails!), medications that thin your blood like aspirin, Coumadin, Plavix or NSAIDs, trauma (getting hit on the nose) among others.