The most common histopathologic findings of trachyonychia are spongiosis and exocytosis of inflammatory cells in the nail epithelia1. Although idiopathic trachyonychia may be much more common than reported, it may present with various associated skin or mucosal diseases including alopecia areata, lichen planus, psoriasis, and eczema. Trachyonychia predominantly occurs in children, although it can affect people of all ages. Trachyonychia can improve spontaneously but may have a chronic course exceeding 6 years and result in cosmetic handicaps.