Physical urticaria
Encyclopedia
Physical urticarias represent a distinct subgroup of the urticaria
s that are induced by an exogenous physical stimulus rather than occurring spontaneously.
The most common form of physical urticaria is dermatographism.
One way of classifying physical urticarias is into thermal, mechanical and cholinergic sources.
Urticaria
Urticaria is a kind of skin rash notable for pale red, raised, itchy bumps. Hives is frequently caused by allergic reactions; however, there are many non-allergic causes...
s that are induced by an exogenous physical stimulus rather than occurring spontaneously.
The most common form of physical urticaria is dermatographism.
One way of classifying physical urticarias is into thermal, mechanical and cholinergic sources.
See also
- Urticarial syndromesUrticarial syndromesThere are several distinct Urticarial syndromes including:* Muckle–Wells syndrome* Familial Mediterranean fever* Systemic capillary leak syndrome...
- Acquired C1 esterase inhibitor deficiencyAcquired C1 esterase inhibitor deficiencyAcquired C1 esterase inhibitor deficiency presents with symptoms indistinguishable from hereditary angioedema, but generally with onset after the fourth decade of life.C4 levels are low and C3 levels are normal....
- List of cutaneous conditions