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Headache

Types of Headache

Headache Classification · R51

Headaches are broadly classified into primary headaches (migraine, tension-type, cluster) and secondary headaches caused by underlying conditions, each requiring different diagnostic and treatment approaches.

2026-03-27

At a Glance

There are over 200 types of headaches classified by the International Classification of Headache Disorders (ICHD-3). Primary headaches account for approximately 90% of all headaches: tension-type headache is most common (38%), followed by migraine (12-15%). Cluster headache is less common but extremely severe. Secondary headaches may indicate serious conditions such as subarachnoid hemorrhage, meningitis, or brain tumors. Accurate classification guides appropriate treatment and identifies red flags requiring urgent evaluation.

Definition and Overview

The International Classification of Headache Disorders, 3rd edition (ICHD-3) classifies over 200 types of headache into primary headaches (no underlying cause) and secondary headaches (caused by another condition) [1].

Primary headaches account for approximately 90% of all headaches. Understanding the type of headache is essential for appropriate treatment and identifying red flags that require urgent evaluation.

Primary Headaches

Tension-Type Headache (TTH)

The most common headache type, affecting 38% of the population. Characterized by bilateral pressing/tightening quality, mild-to-moderate intensity, not aggravated by routine physical activity. Not accompanied by nausea; at most one of photophobia or phonophobia [1].

Migraine

Affects 12-15% of the population, 3 times more common in women. Moderate-to-severe unilateral throbbing headache lasting 4-72 hours with nausea, vomiting, and photo/phonophobia. About 25-30% have aura [2].

Cluster Headache

Severe unilateral orbital/temporal pain lasting 15-180 minutes, occurring 1-8 times daily in clusters of weeks to months. Accompanied by ipsilateral autonomic features: lacrimation, conjunctival injection, nasal congestion, ptosis. Male predominance (3:1) [3].

Other Primary Headaches

Includes primary cough headache, primary exercise headache, primary stabbing headache (ice-pick headache), and hypnic headache (awakening from sleep).

Secondary Headaches

Secondary headaches are caused by an underlying condition and require treatment of the cause:

  • Trauma: post-traumatic headache, subdural hematoma
  • Vascular: subarachnoid hemorrhage, cerebral venous thrombosis, arterial dissection
  • Infection: meningitis, encephalitis, sinusitis
  • Intracranial pressure changes: brain tumor, idiopathic intracranial hypertension
  • Medication: medication overuse headache, nitrate-induced headache
  • Metabolic: hypoglycemia, hypoxia, dialysis headache

Key Differentiating Features

Location: unilateral (migraine, cluster) vs bilateral (tension-type). Quality: throbbing (migraine) vs pressing (tension) vs stabbing (cluster). Duration: seconds (stabbing) vs hours (migraine/tension) vs minutes (cluster). Associated features: nausea (migraine), autonomic symptoms (cluster), nothing specific (tension) [1].

Diagnosis

Most primary headaches are diagnosed clinically based on ICHD-3 criteria. A detailed headache diary documenting frequency, duration, character, triggers, and associated symptoms is invaluable. Neuroimaging (CT/MRI) is indicated when red flags are present but not routinely needed for typical primary headaches [4].

Lifestyle Guide

  • Maintain a headache diary to identify patterns and triggers
  • Regular sleep schedule (consistent bedtime and wake time)
  • Regular meals; avoid skipping meals
  • Stay well-hydrated (8+ glasses of water daily)
  • Regular moderate exercise (30 minutes, 5 times/week)
  • Stress management and relaxation techniques

Frequently Asked Questions

FAQ content is being prepared.

References

  1. [1] Stovner LJ, Hagen K, Linde M, Steiner TJ (2022). "The global prevalence of headache: an update, with analysis of the influences of methodological factors on prevalence estimates." The Journal of Headache and Pain, 23: 34. DOI PubMed
  2. [2] Headache Classification Committee of the International Headache Society (2018). "The International Classification of Headache Disorders, 3rd edition." Cephalalgia, 38: 1-211. DOI PubMed
  3. [3] GBD 2019 Diseases and Injuries Collaborators (2020). "Global burden of 369 diseases and injuries in 204 countries and territories, 1990-2019." The Lancet, 396: 1204-1222. DOI PubMed
  4. [4] Jensen RH (2018). "Tension-type headache – the normal and most prevalent headache." Headache, 58: 339-345. DOI PubMed
  5. [5] May A (2005). "Cluster headache: pathogenesis, diagnosis, and management." The Lancet, 366: 843-855. DOI PubMed
  6. [6] Do TP, Remmers A, Schytz HW, Schankin C, Nelson SE, Obermann M, Hansen JM, Bhola R, Ashina M (2019). "Red and orange flags for secondary headaches in clinical practice: SNNOOP10 list." Neurology, 92: 134-144. DOI PubMed

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headache typestension headachemigrainecluster headachesecondary headacheICHD

This content is provided for medical informational purposes only and cannot replace professional medical advice. If you have symptoms, please consult a specialist.

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