Localized scleroderma is a rare autoimmune condition that primarily affects the skin. It causes patches of thickened, hardened skin due to an overproduction of collagen. The condition can appear in various forms, such as morphea, which presents as oval-shaped, discolored patches, or linear scleroderma, which can affect deeper tissues and may lead to changes in underlying structures. Unlike systemic scleroderma, localized scleroderma does not typically affect internal organs. The exact cause is unknown, but it may involve genetic and environmental factors. Treatment often focuses on managing symptoms and may include topical medications, physical therapy, or other supportive therapies to improve skin appearance and mobility.