👉 Onychopathology is a medical discipline that studies the causes and treatment of conditions affecting the nails, including fingernails, toenails, and cuticles. The term "onychopathology" was coined in 1985 by the American Academy of Dermatology (AAD) to describe this field of study. It encompasses various aspects related to the nail diseases, such as nail fungus, nail infections, nail deformities, and other conditions affecting nails.