Acne Vulgaris IGA 0-4 Classification

Grade acne vulgaris severity using IGA 0-4: 0 (clear), 1 (almost clear), 2 (mild: few comedones/papules), 3 (moderate: many lesions), 4 (severe: extensive inflammatory lesions/nodules).

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Grade acne vulgaris severity using IGA 0-4: 0 (clear), 1 (almost clear), 2 (mild: few comedones/papules), 3 (moderate: many lesions), 4 (severe: extensive inflammatory lesions/nodules)

Each component has a specific meaning:

  • IGA 0-4: 0 — The iga 0-4: 0 recorded for the scenario being assessed.
  • 1 — The 1 recorded for the scenario being assessed.
  • 2 — The 2 recorded for the scenario being assessed.
  • 3 — The 3 recorded for the scenario being assessed.
  • 4 — The 4 recorded for the scenario being assessed.

Note: Interpret the acne iga classification result against the thresholds and context described above.

How to Use

Enter the IGA 0-4: 0, 1, 2, 3, 4 for the scenario you are assessing. Grade acne vulgaris severity using IGA 0-4: 0 (clear), 1 (almost clear), 2 (mild: few comedones/papules), 3 (moderate: many lesions), 4 (severe: extensive inflammatory lesions/nodules). Use the acne iga classification result to inform your calculation.

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Frequently Asked Questions