EASI Score Calculator
Eczema Area and Severity Index - Assess atopic dermatitis severity
EASI Score Assessment
Different weighting factors are used based on age group
Assess Each Body Region
For each body region, select the percentage of area affected and rate the severity of each symptom (0-3 scale).
Head and Neck
Trunk
Upper Limbs
Lower Limbs
EASI Score Results
Regional Score Breakdown
Clinical Recommendations
Maintain good skincare habits: moisturize regularly, avoid harsh soaps, and use sunscreen.
Example EASI Score Calculation
Patient Example (Adult)
Age: Over 8 years (uses adult factors)
Head/Neck: 10% area (score 2), mild redness (1), no other symptoms
Calculation: 2 × 1 × 0.1 = 0.2
Trunk: 30% area (score 3), moderate symptoms (total 6)
Calculation: 3 × 6 × 0.3 = 5.4
Total Score
Head/Neck: 0.2 + Trunk: 5.4 + Upper Limbs: 0 + Lower Limbs: 0
Total EASI Score: 5.6 (Mild severity)
Score Interpretation
No visible signs of eczema
Barely any signs present
Minimal signs without significant inflammation
Noticeable symptoms, may impact daily activities
Intense symptoms, significant body area affected
Intense symptoms, most body areas affected
Severity Assessment Guide
Redness (Erythema)
0 - None: No redness visible
1 - Mild: Slight pink discoloration
2 - Moderate: Clear red color
3 - Severe: Deep red/crimson color
Thickness (Swelling)
0 - None: No elevation of skin
1 - Mild: Slightly raised, barely palpable
2 - Moderate: Clearly raised, easily palpable
3 - Severe: Very thick, prominent elevation
Lichenification
0 - None: Normal skin texture
1 - Mild: Slight skin thickening
2 - Moderate: Pronounced skin thickening
3 - Severe: Very thick, leathery skin
Age-Based Factors
Head/Neck: 0.1
Trunk: 0.3
Upper Limbs: 0.2
Lower Limbs: 0.4
Head/Neck: 0.2
Trunk: 0.3
Upper Limbs: 0.2
Lower Limbs: 0.3
Different factors account for body surface area proportions in children vs. adults
Understanding the EASI Score
What is EASI?
The Eczema Area and Severity Index (EASI) is a validated clinical tool used to assess the severity and extent of atopic dermatitis (eczema). It combines both the area of skin affected and the intensity of clinical signs.
Clinical Applications
- •Monitoring disease progression and treatment response
- •Clinical trial endpoints for eczema research
- •Standardized communication between healthcare providers
- •Treatment decision-making and therapy adjustments
Assessment Components
Area Assessment
Percentage of each body region affected, scored 0-6 based on involvement ranges from 0% to 90-100%.
Severity Assessment
Four clinical signs evaluated on 0-3 scale: redness (erythema), thickness (induration/papulation), scratching (excoriation), and lichenification.
Calculation Formula
Region Score = Area × Severity Sum × Age Factor
EASI = Sum of all region scores
Important Clinical Notes
• The EASI score requires clinical expertise to assess severity accurately
• Inter-rater reliability improves with training and experience
• Should be used alongside other clinical assessments and patient-reported outcomes
• Different age-based factors account for body surface area proportions in children vs. adults
⚠️ Medical Disclaimer
This EASI score calculator is for educational and clinical reference purposes only. It should be used exclusively by qualified healthcare professionals trained in dermatological assessment.
Important considerations:
- Clinical assessment requires proper training in EASI scoring methodology
- Results should be interpreted in context of complete clinical evaluation
- This tool does not replace professional medical judgment or comprehensive examination
- Accuracy depends on proper assessment of clinical signs and affected areas
- Always consult with dermatology specialists for complex cases
- Treatment decisions should consider multiple factors beyond EASI score
This calculator is intended for healthcare professionals familiar with atopic dermatitis assessment and should not be used for self-diagnosis or self-treatment.