<unk>  refers to an alteration of the color of the skin or nails. "Hyperchromia" can refer to hyperpigmentation, and "hypochromia" can refer to hypopigmentation. "Dyschromatoses" involve both hyperpigmented and hypopigmented macules. __TOC__
Dyschromia
Hyperpigmentation
Hypopigmentation
Xanthosis
Polychromasia
Hyperkeratinization
Xanthochromia
Hypertrichosis