What condition is typically referred to as acute urticaria?

Acute urticaria is commonly characterized by the presence of wheals, which are raised areas of skin that are often red and itchy. These wheals can appear suddenly and may vary in size and shape. They typically result from an allergic reaction or other triggers, causing the release of histamine and other chemicals in the body, leading to the swelling and inflammation seen in urticaria.

The other terms are not associated with acute urticaria. A fissure refers to a crack or break in the skin, excoriation denotes a scratch or abrasion, and a scar represents tissue that has healed after an injury. None of these conditions align with the symptoms and characteristics of acute urticaria, making wheal the correct association. Understanding the definition and presentation of wheals is essential for recognizing and addressing acute urticaria in a clinical setting.