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EASI (Eczema Area and Severity Index)

Also called EASI, atopic dermatitis severity score

Atopic dermatitis extent and severity across four regions (0–72), with age-specific regional weights.

Age group
Head and neck: area involved
Head and neck: erythema
Head and neck: oedema/papulation (thickness)
Head and neck: excoriation
Head and neck: lichenification
Upper limbs: area involved
Upper limbs: erythema
Upper limbs: oedema/papulation (thickness)
Upper limbs: excoriation
Upper limbs: lichenification
Trunk: area involved
Trunk: erythema
Trunk: oedema/papulation (thickness)
Trunk: excoriation
Trunk: lichenification
Lower limbs: area involved
Lower limbs: erythema
Lower limbs: oedema/papulation (thickness)
Lower limbs: excoriation
Lower limbs: lichenification

Fill 21 more fields to see the result.

Formula and scoring

Region score = (erythema + oedema/papulation + excoriation + lichenification, each 0–3, half points allowed) × area score (0–6) × weight. Weights ≥8 y: head 0.1, upper limbs 0.2, trunk 0.3, lower limbs 0.4; 0–7 y: 0.2, 0.2, 0.3, 0.3.

Exam and ward pearls

  • EASI-75 (a 75% fall from baseline) is a common trial endpoint.
  • Unlike SCORAD, EASI has no itch or sleep component — it is purely clinician-assessed signs.

When not to rely on it

  • Erythema is under-scored in skin of colour; DermNet advises raising the redness score by one level if in doubt.

Source

  1. Hanifin JM, Thurston M, Omoto M, Cherill R, Tofte SJ, Graeber M. The eczema area and severity index (EASI): assessment of reliability in atopic dermatitis. EASI Evaluator Group. Exp Dermatol. 2001;10(1):11-8. doi:10.1034/j.1600-0625.2001.100102.x · PMID 11168575
  2. Leshem YA, Hajar T, Hanifin JM, Simpson EL. What the Eczema Area and Severity Index score tells us about the severity of atopic dermatitis: an interpretability study. Br J Dermatol. 2015;172(5):1353-7. doi:10.1111/bjd.13662 · PMID 25580670
  3. Oakley A. EASI score. DermNet (area bands, half scores, age-specific multipliers). Link

Formula and cut-offs checked against these sources on 8 Nov 2026. Educational tool for clinicians; it does not replace clinical judgement.

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