What is the term for redness caused by inflammation?

The correct term for redness caused by inflammation is erythema. Erythema refers specifically to the increased blood flow to the superficial capillaries in the skin, which results in a reddish appearance. This increase in blood flow is a natural response to inflammation, as the body sends more blood to the affected area to help combat infection or injury and facilitate healing.

Erythema can be a result of various conditions, including allergic reactions, infections, or irritations. It is typically characterized by warmth and swelling in addition to the color change.

Other terms in the options have distinct meanings. Dermatitis refers to inflammation of the skin itself, which may cause erythema among other symptoms, but it is not specifically defined as redness. Ecchymosis denotes a discoloration caused by bleeding underneath the skin, often referred to as a bruise, which is different from the redness due to inflammation. Hyperemia is a more general term for increased blood flow to tissues but does not specifically indicate that it is due to inflammation.