Opi
Calc
7-Point Dermoscopy Checklist
ABSI (Burn Severity)
AGEP Score
AJCC Melanoma Staging
ALDEN Algorithm
BWH SCC Staging
Body Surface Area (BSA)
Breslow & Clark Microstaging
CTCAE Skin Toxicity
DLQI
EASI Score
GAGS (Acne)
HiSCR
IGA
IHS4
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MSK Melanoma Nomogram
Melanoma Risk Screening
PASI Score
POEM
Parkland Formula
RegiSCAR DRESS Validation
Revised Baux Score
SCORAD
SCORTEN
mPASI
GAGS (Acne)
Global Acne Grading System (GAGS): Quantitative assessment of acne severity across anatomical regions.
Forehead
Factor: 2
None
Comedones
Papules
Pustules
Nodules
Right Cheek
Factor: 2
None
Comedones
Papules
Pustules
Nodules
Left Cheek
Factor: 2
None
Comedones
Papules
Pustules
Nodules
Nose
Factor: 1
None
Comedones
Papules
Pustules
Nodules
Chin
Factor: 1
None
Comedones
Papules
Pustules
Nodules
Chest & Upper Back
Factor: 3
None
Comedones
Papules
Pustules
Nodules
Grade Acne Severity
Guidelines & Evidence
Clinical Details
Section 1
When to Use
When to Use
Objective, quantitative assessment of acne vulgaris severity.
Useful in clinical trials or to justify escalation to Isotretinoin.
Section 2
Formula & Logic
Scoring Components
Calculated across six locations: Forehead, Right Cheek, Left Cheek, Nose, Chin, and Chest/Back.
Formula: Local Score = Factor × Severity Weight (0-4).
Section 3
Pearls/Pitfalls
Severity Scale
1-18: Mild
19-30: Moderate
31-38: Severe
>39: Very Severe
Section 4
Evidence Appraisal
Primary Reference
A therapeutic hierarchy for acne vulgaris: a customized medical approach.
Doshi A et al.
•
J Am Acad Dermatol
. 1997;37(5 Pt 1):761-4
Last Comprehensive Review: 2026
Related Dermatology Tools
ABSI
AGEP Score
AJCC Melanoma Staging
ALDEN Algorithm
Body Surface Area
Breslow & Clark Microstaging
BWH SCC Staging
CTCAE Skin Toxicity
DLQI
EASI Score
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