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Medicine · Education

Acute headache differential diagnosis tree

An acute headache differential diagnosis tree helps learners order their questions around urgency. Red flags such as sudden onset, neurological change and signs of infection are separated before common primary headache patterns. The final leaves are prompts for assessment, not conclusions. Use the tree to prepare a case presentation or revise clinical reasoning, then adapt it to the patient context, examination and local guidelines. Do not use a diagram alone to decide whether someone needs urgent medical care.

Type Decision treeStandard Howard-Raiffa / CART-sklearn / taxonomyEngine schematex-decisiontreeUpdated 9/24/2026
Acute headache differential diagnosis tree
Drawing preview
The request

“Create an acute headache differential diagnosis tree with red flags, infection signs, migraine features, and common alternative causes.”

Then tryAdd a branch for pregnancy.Change the migraine branch to visual aura.
What is in this drawing

Read the decisions behind it.

01Find red flags

Sudden onset and deficits change urgency.

02Check infection signs

Fever and meningism require prompt assessment.

03Recognize pattern

Recurrent features can support a primary headache pattern.

04Avoid closure

Persisting atypical symptoms need further evaluation.

Educational aid only; real patients require clinical assessment and local emergency guidance.

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FAQ

Common questions

Why do red flags appear first?

They identify presentations that may need urgent assessment before considering common primary headaches.

Does migraine exclude other causes?

No. A migraine-like pattern still needs clinical context and red-flag assessment.

Can this be used for patients?

It is for education and case discussion, not self-diagnosis or treatment decisions.