Hives Health Article

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Illustrations
Hives (urticaria) - close-up
Hives develop when histamine is released into the small blood vessels (capillaries. The capillaries dilate which causes a welt, and fluid oozes into the surrounding tissue, causing swelling. Histamine also causes intense itching. Update Date:
10/23/2006 Kevin Berman, MD, PhD, Associate, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network.

Hives (urticaria) - close-up
Hives (urticaria) on the arm
Hives (urticaria) on the chest

Hives (urticaria) - close-up
Hives (urticaria) on the trunk
Hives (urticaria) on the back and buttocks

Hives (urticaria) on the back
Hives (urticaria) on the chest
Hives

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