Pathogenic tongues Properties of tongue coating:Thickness, Moistness,Greasiness and curdiness, Peeling,Root(true/false) Colors of tongue coating:White,Yellow, Gray,Black Pathogenic tongues ◼ Properties of tongue coating: Thickness, Moistness, Greasiness and curdiness, Peeling, Root (true / false) ◼ Colors of tongue coating: White, Yellow, Gray, Black