Urticaria (hives) develops quickly and has ring-like, slightly raised lesions accompanied by itch. This image displays a giant, round, hive-like lesion. This image displays distinct, round, slightly elevated lesions, which can grow quickly and resolve within 24-48 hours. This image displays severe hives (urticaria) from taking aspirin. Urticaria (hives) often forms rings, and ring-like shapes. Urticaria (hives) often form rings and ring-like shapes that quickly appear and disappear. This image displays urticaria (hives) with significant swelling in the skin tissue and some normal areas of skin, which look dimpled or depressed within the lesion. This image displays round, pink areas with clear zones common to urticaria (hives). This image displays urticaria (hives). This image displays a severe case of urticaria (hives). This image displays welts and large hair follicle openings caused by swelling from urticaria (hives).
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Hives (Urticaria)  Information for adults

Picture of Hives (Urticaria): Urticaria (hives) develops quickly and has ring-like, slightly raised lesions accompanied by itch. Divider line
Urticaria (hives) develops quickly and has ring-like, slightly raised lesions accompanied by itch.
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Signs and Symptoms
The most common locations for hives include:
  • Trunk
  • Upper arms or upper legs
However, hives can affect any skin surface.

An individual lesion of hives appears as a well-defined, pink-to-red swelling, ranging in size from 2 mm to over 30 cm. Some lesions may develop a lighter center. Hives usually appear in groups or batches.

Individual lesions of hives disappear within 24 hours, though a single episode may last much longer.

Dermographism is a type of hives that appears within a few minutes of scratching the skin. The rash is usually seen in a straight line (linear) pattern.

Swelling of the eyes, mouth, hands, feet, or genitals can sometimes occur with hives. This swelling, called angioedema, usually goes away within 24 hours.

Usually itchy, hives can also burn or sting.
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Last Modified: 22 Dec 2008
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