A<unk>  or onychosis is a<unk>  or deformity of the<unk> . Although the<unk>  is a structure produced by the skin and is a skin appendage,<unk> s have a distinct classification as they have their own signs and symptoms which may relate to other medical conditions. Some<unk>  conditions that show signs of infection or inflammation may require medical assistance.
Nail disease
Vocal cord paresis
Pulp canal obliteration
Railway spine
Dentures
Jaw abnormality
Swan neck deformity
Laryngomalacia