Ms. Carroll and Associates Reply

Severe morbid onychophagia: the classification as self-mutilation and a proposed model of maintenance

“…Onychophagia also has several features in common (such as the degree of injury) with the other self‐harming behaviours that are considered self‐mutilative such as trichotillomania [6][7][76], skin‐scratching [1][9][10][77], skin‐picking [10][11][78] and cheek‐biting [1][11].…”