How to Stop a Nose Bleed. Nose bleeds, also known as epistaxis, are a common complaint which can occur spontaneously. Nose bleeds occur when the inner lining of one's nose is hurt or dry. The resulting damage to small blood vessels in the. Causes of a nosebleed. The inside of the nose is delicate and nosebleeds happen when it's damaged. This can be caused by: picking your nose; blowing your nose too hard; the inside of your nose being too dry (because of a change in air temperature) Nosebleeds that need medical attention can come from deeper inside the nose and usually affect adults. Nosebleeds are common, and can be caused by trauma, high blood pressure, medications, alcohol or drug abuse, and constant nose picking (especially in children). There are effective ways to stop a nosebleed quickly without medical intervention. Frequent or chronic nosebleeds may need medical evaluation. Nosebleeds usually aren’t serious, but knowing how to stop the bleeding and treat your symptoms is important. Learn how to prevent and treat nosebleeds. In this video we show you how to stop a bleeding nose in a few simple steps. This video is produced by The Red Cross Netherlands & Medical Media (Healthchannel) and is a supporting part of the official First Aid Training. We can only explain this first aid procedure in a nutshell and therefore advice you to gather more information on. Think you're supposed to tilt your head to the sky when you have a nosebleed? Find out what to do.