Acute Subdural Hematoma Quiz

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Maxwell J. Nanes

Maxwell J. Nanes, DO (Emergency department)

Shohei Harase

Shohei Harase, MD (Neurology)

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Learn more about Acute subdural hematoma

Content updated on Sep 20, 2022

What is acute subdural hematoma?

Acute subdural hematoma is accumulation of blood between the brain and its outermost covering and can be a medical emergency. It’s usually caused by a head injury. Older Age, blood-thinning drugs and alcohol abuse can increase the risk.

Symptoms of acute subdural hematoma

  • Injury to the head

  • My brain is not functioning right now

  • Pain over the temples

  • Insect sting or injury from animals

  • Currently undergoing chemotherapy

  • Falling frequently

  • Headache

  • Nausea or vomiting

Questions your doctor may ask to check for acute subdural hematoma

Your doctor may ask these questions to diagnose acute subdural hematoma

  • Did you hit your head?

  • Do you have problems focusing or a reduced sense of awareness in your surroundings?

  • Do you have pain around your temples?

  • Have you been bitten, scratched, stung by bugs (ex. bees) or animals (ex. dogs, cats, wild animals)

  • Are you currently on chemotherapy?

Treatment for acute subdural hematoma

Small or asymptomatic acute subdural hematomas may not need treatment beyond close monitoring. Blood thinners are stopped or their effect is counteracted with special medications. For severe cases, surgery is often required. Antiseizure medications are given if seizures are present.

View the symptoms of Acute subdural hematoma


  • Vega RA, Valadka AB. Natural History of Acute Subdural Hematoma. Neurosurg Clin N Am. 2017 Apr;28(2):247-255. doi: 10.1016/ Epub 2017 Jan 30. PMID: 28325459.

  • Karibe H, Hayashi T, Hirano T, Kameyama M, Nakagawa A, Tominaga T. Surgical management of traumatic acute subdural hematoma in adults: a review. Neurol Med Chir (Tokyo). 2014;54(11):887-94. doi: 10.2176/ Epub 2014 Oct 31. PMID: 25367584; PMCID: PMC4533344.

  • Phan K, Moore JM, Griessenauer C, Dmytriw AA, Scherman DB, Sheik-Ali S, Adeeb N, Ogilvy CS, Thomas A, Rosenfeld JV. Craniotomy Versus Decompressive Craniectomy for Acute Subdural Hematoma: Systematic Review and Meta-Analysis. World Neurosurg. 2017 May;101:677-685.e2. doi: 10.1016/j.wneu.2017.03.024. Epub 2017 Mar 16. PMID: 28315797.

  • Sagher O. Acute subdural hematoma. J Neurosurg. 2011 Oct;115(4):842; discussion 842-3. doi: 10.3171/2011.5.JNS11753. Epub 2011 Jun 17. PMID: 21682564.

Reviewed By:

Maxwell J. Nanes

Maxwell J. Nanes, DO (Emergency department)

Shohei Harase

Shohei Harase, MD (Neurology)

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

Shohei Harase

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