Most nosebleeds start from blood vessels near the front of the nose and stop with correct pressure. Heavy or persistent bleeding, especially when blood runs down the throat, can be more difficult to control and may need urgent assessment. The location cannot always be identified safely at home.
How a nosebleed may present
A nosebleed may flow from one nostril, both nostrils, or down the throat. Blood reaching the throat can happen with a heavy bleed from the front as well as a deeper source, so the direction alone does not establish the exact origin. Anticoagulant medicines, bleeding disorders, trauma, and high blood pressure readings may be relevant to the assessment.
First aid while arranging help
Sit upright and lean forward. Pinch the soft part of the nose continuously for 10 to 15 minutes without releasing to check repeatedly, and breathe through the mouth. Do not tilt the head backward or lie flat. If bleeding is heavy, causes weakness or breathing difficulty, or does not stop with correct pressure, seek urgent care.
What medical treatment may involve
Clinicians may identify the bleeding site, use cautery or packing, review medicines and clotting risks, and sometimes involve an ENT specialist for more difficult bleeding. Do not stop prescribed blood thinners without medical advice. After a significant bleed, follow instructions about avoiding nose blowing, strenuous activity, and medicines that may increase bleeding.
Frequently asked questions
Should I tilt my head back? No. Lean forward so blood does not run down the throat.
Is blood running into the throat always a posterior bleed? No. Heavy anterior bleeding can also flow backward; the exact site needs assessment.
When should emergency services be called? Call for help if bleeding is heavy, causes faintness or breathing difficulty, follows major trauma, or cannot be controlled with sustained pressure.
Explore our nasal breathing assessment and nasal endoscopy pages for more information about related care options. A clinician can advise whether either is appropriate based on the individual history and examination findings.
Related reading
- How to Stop a Nosebleed: First Aid and Warning Signs
- Nosebleeds in Children: First Aid and When to Get Help