Anonychia

Anonychia
SpecialtyDermatology

Anonychia is the failure to form fingernails or toenails.

It is an anomaly which may be the result of a congenital ectodermal defect, ichthyosis, severe infection, severe allergic contact dermatitis, self-inflicted trauma, Raynaud phenomenon, lichen planus, epidermolysis bullosa, or severe exfoliative diseases.

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