What is the term used for tissue that is inflamed and red due to increased blood flow?

The term for tissue that is inflamed and red due to increased blood flow is erythema. Erythema occurs as a result of vasodilation, where the blood vessels expand to increase blood flow to a specific area of the body, which can often be due to injury or infection. This increased blood flow brings immune cells and nutrients to the affected area, leading to the characteristic redness associated with inflammation.

This physiological response is essential in the healing process, helping to promote recovery by delivering necessary resources to the site of damage or irritation. The other terms do not accurately describe this specific process. Exudate refers to the fluid that leaks out of blood vessels during inflammation, often containing immune cells and proteins. Keratolytic refers to substances that help to shed or remove the outer layer of skin. Nevus denotes a mole or benign pigmented lesion on the skin, which is unrelated to the processes of inflammation or increased blood flow.