EASI Score

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Eczema Area and Severity Index overview.

Head and Neck

Affected Area (%)

Erythema (Redness)

Edema / Papulation (Thickness)

Excoriation (Scratching)

Lichenification

Trunk

Affected Area (%)

Erythema (Redness)

Edema / Papulation (Thickness)

Excoriation (Scratching)

Lichenification

Upper Limbs

Affected Area (%)

Erythema (Redness)

Edema / Papulation (Thickness)

Excoriation (Scratching)

Lichenification

Lower Limbs

Affected Area (%)

Erythema (Redness)

Edema / Papulation (Thickness)

Excoriation (Scratching)

Lichenification

Index Result

EASI Score0.0/ 72

SeverityClear / Almost Clear

Severity Grading

0 - 1.0Clear / Minimal

1.1 - 7.0Mild

7.1 - 21.0Moderate

21.1 - 72.0Severe

About this calculator

Overview

The Eczema Area and Severity Index (EASI) is the most widely validated clinical scoring system for assessing the severity of atopic dermatitis (eczema). It considers the extent of the disease (Area) and the intensity of four specific clinical signs (Severity) across four body regions.

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Pro Tips

Include only active eczema lesions; do not count post-inflammatory hyperpigmentation or scabs unless crust is present.
The multiplication factor accounts for the differing body surface area (BSA) of each region.
Consistent lighting and standardized grading are key to reliable longitudinal tracking.

Fun Facts

"The minimum score is 0 and the maximum score is 72."
"Clinical trials often use a 75% reduction in EASI (EASI-75) as a primary endpoint."
"Severity signs are graded on a 4-point scale: 0 (None), 1 (Mild), 2 (Moderate), 3 (Severe)."
"It focuses on objective physical signs rather than subjective symptoms like itch (pruritus)."

Formula: EASI = Sum of [Region Severity (0-12) × Region Area (0-6) × Region Factor].