color: Beau's lines · Yellow nail syndrome · Leukonychia · Azure Lunula
shape: Koilonychia · Clubbing
behavior: Onychotillomania · Onychophagia
other: Ingrown nail · Anonychia
eccrine: Miliaria (Miliaria crystalline, Miliaria profunda), Granulosis rubra nasi, Ross’ syndrome, Anhidrosis, Hyperhidrosis (Generalized, Gustatory, Palmoplantar)