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Last reviewed: 20 Mar 2025
Last updated: 12 Sep 2023

Summary

Definition

History and exam

Key diagnostic factors

  • blood at one nostril or on both sides of nose
  • presence of risk factors

Other diagnostic factors

  • bleeding starting at the nares
  • recurrent epistaxis
  • septal deviation
  • bleeding starting in the throat
  • signs of haemodynamic compromise
  • intranasal polyp
  • telangiectasia

Risk factors

  • dry weather and low humidity
  • septal deviation
  • minor nasal trauma
  • nasal foreign body
  • nasal polyp
  • topical nasal drugs
  • primary coagulopathy (e.g., haemophilia)
  • medication (e.g., aspirin, anticoagulant, non-steroidal anti-inflammatory drugs)
  • familial hereditary haemorrhagic telangiectasia
  • juvenile nasal angiofibroma

Diagnostic investigations

Investigations to consider

  • FBC and ‘group and save
  • clotting studies (INR, prothrombin time, activated partial thromboplastin time, platelet function tests)
  • urea and electrolytes and serum creatinine
  • liver function tests (LFTs)
  • CT scan of paranasal sinuses
  • ECG

Treatment algorithm

Contributors

Expert advisers

Alexander Alexiou, MB, BS, BSc, DCH, FRCEM, DipIMC RSEd

Emergency Medicine Consultant

Barts Health NHS Trust

Physician Response Unit Consultant

London’s Air Ambulance

Royal London Hospital

London

UK

Disclosures

AA declares that he has no competing interests.

Acknowledgements

BMJ Best Practice would like to gratefully acknowledge the previous expert contributor, whose work has been retained in parts of the content:

Darren Pinder, BSc(Hons), MB BChir, MSc(Med Ed), FRCS(ORL)

Consultant ENT Surgeon

Royal United Hospital Bath NHS Trust Bath

UK

Disclosures

DP declares that he has no competing interests.

Peer reviewers

Darren Pinder, BSc(Hons), MB BChir, MSc(Med Ed), FRCS(ORL)

Consultant ENT Surgeon

Royal United Hospital Bath NHS Trust

Bath

UK

Disclosures

DP declares that he has no competing interests.

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