Definition: Rutidosis is a medical condition characterized by a characteristic skin color, often described as "rusty" or "rude," due to a lack of melanin pigment in the skin. This can occur on the face, neck, hands, and feet, especially in individuals with a genetic predisposition for it (the so-called "racine du cuir chevelu"). Rutidosis is often associated with certain medical conditions such as cancer or thyroid disorders. It's important to