Definition of Wheal:

An inflammatory response to mild skin irritation, with a well-defined, raised redness, lasting for perhaps an hour and then disappearing.  The cause is usually atopic allergies in an IgE-excess person, although mild, subclinical adrenocortical deficiency can be another factor.

Also: Wheals

Topics Related to Wheal

Hives (Urticaria)

...the condition
“...The wheals are white or red, occasionally with a pale center...”


...related topic
“...Symptoms include sudden onset; initial itching; then swelling of the surface of the skin into red or skin-colored welts (wheals) with clearly defined edges; welts turn white on touching; new welts develop when the skin is scratched; usually disappear within minutes or hours...”
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