UAS7 (Urticaria Activity Score over 7 Days)
UAS7 (Urticaria Activity Score over 7 days): the summed daily wheal and itch scores (0–42) grade chronic spontaneous urticaria activity.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- 7-day wheal score sum
- 10
- 7-day itch score sum
- 8
Result: UAS7 18 / 42 — moderate (16-27).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0-6
- Urticaria-free (0) or well-controlled (1-6).
- 7-27
- Mild (7-15) or moderate (16-27).
- 28-42
- Severe. Daily wheal + itch summed over 7 days. A disease-activity measure, not a treatment order.
What you enter
- 7-day wheal score sum (0–21)
- 7-day itch score sum (0–21)
How this is calculated
Mlynek A, Zalewska-Janowska A, Martus P, et al. How to assess disease activity in patients with chronic urticaria? Allergy. 2008;63(6):777-780. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.