Pincer nail

The curvature that rises along the distal sides of the nail can cause individuals pain, persistent inflammation, and recurring infections.

[4] Pincer nails are linked to a number of systemic conditions, such as amyotrophic lateral sclerosis, renal failure, gastrointestinal cancers, Kawasaki disease, and systemic lupus erythematosus.

[6][7] Clinical differential diagnoses are necessary due to confusion between pincer and ingrown nails.

[4] Surgical treatment has a decreased rate of recurrence, though when done improperly it can result in pain, an atypical nail appearance, secondary infection, wound necrosis, and sensory disruption.

[11] Pincer nail has an incidence rate of about 0.9% and usually affects the hallux toenails on the outer, inside, and bilateral sides.