Urticaria (Hives): a complete overview - DermNet
Urticaria is characterised by very itchy weals (hives), with or without surrounding erythematous flares. The name urticaria is derived from the common European stinging nettle Urtica dioica. …
Hives (urticaria): Causes, pictures, and treatments - Medical News Today
2024年1月3日 · The medical name for hives is “urticaria.” People also call it welts, wheals, or nettle rash. Hives affects around 20% of people at some time in their lives. The issue can be …
Acute and Chronic Urticaria: Evaluation and Treatment - AAFP
2017年6月1日 · Urticaria commonly presents with intensely pruritic wheals, sometimes with edema of the subcutaneous or interstitial tissue. It has a lifetime prevalence of about 20%.
Hives (Urticaria) - Symptoms and Causes - Penn Medicine
Wheals may get bigger, spread, and join together to form larger areas of flat, raised skin. Wheals often change shape, disappear, and reappear within minutes or hours. It is unusual for a wheal …
Description of Skin Lesions - Description of Skin Lesions
Labial Melanotic Macule. Hide Details. The lesion in this photo is a macule because it is flat, nonpalpable, and of small diameter. Photo provided by Robert MacNeal, MD. Papules are …
Urticaria and urticaria-like conditions - DermNet
Introduction. This topic provides a differential diagnosis for urticaria and for urticaria -like conditions that resemble urticaria but are not caused by wealing. What is urticaria? Urticaria …
Hives: Causes, Symptoms, Diagnosis, Treatment & Prevention
2022年10月14日 · Hives are raised red bumps (welts) or splotches on the skin. They’re a type of swelling on the surface of your skin and happen when your body has an allergic reaction. …
Urticaria: Evaluation and Treatment - AAFP
2011年5月1日 · It is characterized by well-circumscribed, intensely pruritic, raised wheals (edema of the superficial skin) typically 1 to 2 cm in diameter, although they can vary in size and may …
Chronic hives - Symptoms and causes - Mayo Clinic
2024年10月1日 · Hives — also called urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts. Chronic hives are welts that last for more than six weeks and return often over …
Hives and angioedema - Symptoms and causes - Mayo Clinic
2023年10月27日 · Hives — also known as urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts that range in size from small spots to large blotches. Hives can be triggered …