Skull fractures

When viewing this topic in a different language, you may notice some differences in the way the content is structured, but it still reflects the latest evidence-based guidance.

Last reviewed: 12 Feb 2025
Last updated: 22 Apr 2024

Summary

Definition

History and exam

Key diagnostic factors

  • risk factors
  • open fracture
  • palpable discrepancy in bone contour
  • Battle's sign
  • periorbital ecchymosis
  • bloody otorrhoea
  • cerebrospinal fluid rhinorrhoea
  • facial paralysis, nystagmus, or paraesthesia
Full details

Other diagnostic factors

  • evidence of trauma
  • cranial pain or headache
  • nausea/vomiting
  • altered mental state/loss of consciousness
  • abnormal pupillary reflexes
  • hearing loss
Full details

Risk factors

  • fall from height
  • motor vehicle accident
  • assault resulting in head trauma
  • gunshots to the head
  • male sex
Full details

Diagnostic investigations

1st investigations to order

  • cranial CT
Full details

Investigations to consider

  • skeletal survey
  • MRI
  • MR angiography
  • beta-2 transferrin assay
  • plain skull x-ray
  • clotting screen
Full details

Treatment algorithm

INITIAL

suspected skull fracture (any type)

ACUTE

confirmed closed non-depressed fracture

confirmed closed depressed fracture

confirmed open fracture

ONGOING

persistent cranial nerve injury or CSF leakage

Contributors

Expert advisers

Kevin Tsang, MBBS, BSc (Hons), MRCS (Eng), FRCS (SN)

Consultant Neurosurgeon

Unit Training Lead and Clinical Teacher

Imperial College Healthcare NHS Trust

London

UK

Disclosures

KT declares that he has no competing interests.

Acknowledgements

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

Demetrios Demetriades MD, PhD, FACS

Professor of Surgery

Director

Division of Trauma and Surgical Intensive Care

LAC+USC Trauma Center

Keck School of Medicine at USC

University of Southern California

Los Angeles

CA

Leslie Kobayashi MD, FACS

Associate Professor of Surgery

Division of Trauma, Surgical Critical Care and Burns

University of California San Diego

San Diego

CA

Disclosures

DD declares that he has no competing interests. LK declares that she has no competing interests.

  • Skull fractures images
  • Differentials

    • Intracranial haemorrhage
    • Suture lines in children
    • Cephalhaematoma
    More Differentials
  • Guidelines

    • Head injury: assessment and early management
    • Clinical practice guideline for paediatric head injury
    More Guidelines
  • Calculators

    Glasgow Coma Scale

    More Calculators
  • padlock-lockedLog in or subscribe to access all of BMJ Best Practice

Use of this content is subject to our disclaimer