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Hook, Pincer, Split Nail Deformity

The fingernails can sometimes grow abnormally. Common nail deformities include hook nail where the nail curves down towards the tip of the finger like a hook, pincer nail where the nail curves from side to side with the lateral edges directed into the nail bed, and split nail where scar tissue prevents a segment of nail from growing giving the remaining nail a split appearance.

Source :

  • The American Board of  Orthopaedic Surgery
  • Allegheny General Hospital
  • University of Pittsburgh  Medical Center
  • University of Cincinnati College of Medicine
  • American Society for Surgery of the Hand
  • American Association for Hand Surgery: AAHS
  • Alpha Omega Alpha