anonychia

Introduction

absence of nails

Etiology

• congenital ectodermal defect (anonychia congenita)
• ichthyosis
• severe paronychia
• severe allergic contact dermatitis
• self-inflicted trauma
• Raynaud phenomenon
• lichen planus,
• epidermolysis bullosa
• evere exfoliative diseases

Epidemiology

rare

More general terms

• skin appendage disease

More specific terms

• anonychia congenita