onycholysis

Introduction

Separation of the nail plate from the nail bed. The separated portion is white & opaque in contrast to attached portions which retain the pink & translucent appearance of normal nails.

Etiology

• hyperthyroidism, especially the ring finger
• onychomycosis (Candida)
• trauma
• chemical exposure (nail cosmetics)
• drug reaction
  • tetracycline
  • chlorpromazine
• psoriasis
• Pseudomonas infection

More general terms

• nail disease
• sign/symptom