Disease or Syndrome
urticaria

ur·ti·car·i·a [ ur-ti-kair-ee-uh ]
Subclass of:
Immediate hypersensitivity;
Skin Diseases, Vascular
Etymology:
Latin urtica = a nettle + -ia = condition
The basic root is found in urere = to burn. The application of urticaria to hives in general arose through the resemblance of these lesions to a nettle rash.
The basic root is found in urere = to burn. The application of urticaria to hives in general arose through the resemblance of these lesions to a nettle rash.
Also called:
Hives; Wheals
Definitions related to urticaria:
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(hives) Hives are red and sometimes itchy bumps on your skin. An allergic reaction to a drug or food usually causes them. Allergic reactions cause your body to release chemicals that can make your skin swell up in hives. People who have other allergies are more likely to get hives than other people. Other causes include infections and stress. Hives are very common. They usually go away on their own, but if you have a serious case, you might need medicine or a shot. In rare cases, hives can cause a dangerous swelling in your airways, making it hard to breathe - which is a medical emergency.MedlinePlusU.S. National Library of Medicine, 2021
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A transient, itchy skin eruption characterized by wheals with pale interiors and red margins.NCI ThesaurusU.S. National Cancer Institute, 2021
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A vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. The causative mechanism may be allergy, infection, or stress.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An itchy rash of usually short duration. Also known as hives.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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Itchy, raised red areas on the skin. Urticaria are caused by a reaction to certain foods, drugs, infections, or emotional stress.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Raised, well-circumscribed areas of erythema and edema involving the dermis and epidermis. Urticaria is intensely pruritic, and blanches completely with pressure.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Usually transient vascular reaction involving the upper dermis, representing local edema caused by dilation and increased permeability of the capilliaries and the development of wheals.CRISP ThesaurusNational Institutes of Health, 2006
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A disorder characterized by an itchy skin eruption characterized by wheals with pale interiors and well-defined red margins.Common Terminology Criteria for Adverse EventsU.S. National Institutes of Health, 2021
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Urticaria consists of migratory, well-circumscribed, erythematous, pruritic plaques on the skin. Urticaria also may be accompanied by angioedema, which results from mast cell and basophil activation in the deeper dermis and subcutaneous tissues and manifests as edema of the face and lips, extremities, or genitals. Angioedema can occur in...Merck & Co., Inc., 2020
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Urticaria, commonly referred to as hives, is the most frequent dermatologic disorder seen in the ED. It appears as raised, well-circumscribed areas of erythema and edema involving the dermis and epidermis that are very pruritic.WebMD, 2019
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Hives, a hypersensitive skin reaction characterized by the sudden appearance of very itchy, slightly raised, smooth, flat-topped wheals and plaques that are usually redder or paler than the surrounding skin. In the acute form, the skin lesions generally subside in 6 to 24 hours, but they may come...Encyclopedia Britannica, Inc., 2020
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