4 doctors weighed in:
What causes urticaria to occur?
4 doctors weighed in

Dr. Paul Carter
Internal Medicine - Allergy & Immunology
3 doctors agree
In brief: Histamine
Urticaria is caused by the release of histamine from mast cells located in the skin.
This can occur due to a variety of mechanisms, with allergy being the most common acute cause of hives.

In brief: Histamine
Urticaria is caused by the release of histamine from mast cells located in the skin.
This can occur due to a variety of mechanisms, with allergy being the most common acute cause of hives.
Dr. Paul Carter
Dr. Paul Carter
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