Table 2.

Clinical features of trachyonychia

Opaque variety	More severe variety; nails are brittle, thin, and rough with excessive longitudinal ridging due to fine superficial striations found in a parallel pattern
Shiny variety	Nails retain their luster, presenting with superficial ridging and multiple small geometric pits
Both varieties	Superficial scaling of the nail plate and hyperkeratosis of the cuticles; koilonychia, onychoschizia