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Chronic spontaneous urticaria (CSU) is defined as the spontaneous appearance of wheals, angioedema or both, lasting for more than 6 weeks. The cause is unknown.

Urticaria may be classified into different subtypes based on duration and cause.

Classifying chronic urticaria:1

about-csu-diagram

Adapted from Zuberbier T et al. 2018.1

 

CSU, chronic spontaneous urticaria.

 

Reference

  1. Zuberbier T, et al. Allergy 2018;73(7):1393–1414.
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UK | October 2021 | 146364
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