What term is used to describe redness of the skin?

Erythema refers to the redness of the skin that commonly occurs due to increased blood flow to the superficial capillaries. This increase can be caused by various factors, including inflammation, infection, or irritation. Erythema is a visible indication that can help healthcare professionals assess underlying conditions, as it often signifies an immune response to injury or infection. Understanding erythema is important in clinical settings because it can aid in diagnosing skin issues or systemic conditions impacting blood circulation.

Cyanosis, on the other hand, describes a bluish discoloration of the skin, indicating inadequate oxygenation. Pallor refers to an unusual paleness of the skin, often associated with reduced blood flow or anemia. Jaundice is characterized by a yellowish tinge to the skin and eyes, usually resulting from liver problems that affect bilirubin metabolism. Each of these terms describes different skin color changes that convey specific health information, making it crucial to differentiate them accurately.