What is not a characteristic of onychorrhexis?

Onychorrhexis is characterized by brittle nails that may display longitudinal ridges, splitting, and a rough texture. These characteristics include brittle nails, which are fragile and prone to breakage, and the splitting of the nail, where the nail may crack or break apart along its length. Nail surface pitting, which refers to small depressions or indentations in the nail plate, is not typically associated with onychorrhexis. Instead, it is more commonly linked to conditions such as psoriasis or other nail disorders.

The increase in nail curvature is not a defining characteristic of onychorrhexis. While changes in nail shape can occur with other nail disorders or conditions, they are not a primary feature of onychorrhexis itself. Thus, the correct response is that an increase in nail curvature does not align with the characteristics of onychorrhexis.