1. What is Body Surface Area (BSA) Calculation for Eczema?

Definition: This calculator estimates the severity of eczema based on the percentage of body surface area affected.

Purpose: It helps healthcare professionals and patients assess eczema severity using the palm method (1 palm ≈ 1% BSA).

2. How Does the Calculator Work?

The calculator uses the following classification:

Severity classification:

• Mild: <3% BSA affected
• Moderate: 3-10% BSA affected
• Severe: >10% BSA affected

Explanation: The palm of the patient's hand (including fingers) represents approximately 1% of their total body surface area.

3. Importance of BSA Assessment in Eczema

Details: BSA assessment helps determine treatment approach, track disease progression, and evaluate treatment effectiveness.

4. Using the Calculator

Tips: Estimate the affected area by counting how many "palms" of eczema are present on the body. Enter the total percentage (0-100%).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the palm method?
A: It's an estimation tool. For precise measurements, healthcare providers may use more detailed methods like the Rule of Nines.

Q2: Does this include both active and inactive eczema areas?
A: Typically only active, inflamed areas are counted in BSA assessment.

Q3: How often should BSA be assessed?
A: Regular assessments help track progress, especially when starting new treatments.

Q4: Are there different classifications for children?
A: The same percentages apply, but children may have different body proportions.

Q5: What other factors affect eczema severity?
A: Besides BSA, consider symptoms like itching, sleep disturbance, and quality of life impact.