This leaflet is created from first aid advice provided by St John Ambulance, the nation's leading first aid charity. This advice is no substitute for first aid training - find a training course near you.
A nose bleed is when blood flows from one or both nostrils. It's normally caused by the tiny blood vessels inside the nostrils being ruptured.
Common causes of nose bleeds include a blow to the nose, sneezing, picking or blowing the nose, and high blood pressure.
What to look for
Most nose bleeds are minor and only last a few minutes, but they can be dangerous if someone loses a lot of blood.
If someone has had a blow to the head, the blood may appear thin and watery. This could mean that their skull is fractured and fluid is leaking from around the brain. If that happens, it is very serious and you should call 999 or 112 for emergency medical help. See advice for head injuries.
What to do
- If someone is having a nose bleed, your priority is to control the bleeding and keep their airway open.
- Get them to sit down (not lie down) as keeping the nose above the heart will reduce bleeding.
- Get them to lean forward (not backwards), to make sure the blood drains out through their nose, rather than down their throat which could block their airway.
- Ask them to breathe through their mouth and pinch the soft part of the nose, taking a brief pause every ten minutes, until the bleeding stops.
- Encourage them not to speak, swallow, cough, spit or sniff because this may break blood clots that may have started to form in the nose.
- If the bleeding is severe, or if it lasts more than 30 minutes, call 999 or 112 for medical help.
Note: these hints are no substitute for thorough knowledge of first aid. St John Ambulance holds first aid courses throughout the country.
Adapted from the St John Ambulance leaflet: nose bleeds . Copyright for this leaflet is with St John Ambulance.
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Disclaimer: This article is for information only and should not be used for the diagnosis or treatment of medical conditions. EMIS has used all reasonable care in compiling the information but make no warranty as to its accuracy. Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. For details see our conditions.