PINCER NAIL

A pincer nail (PN) is a one with abnormal transverse curvature along the longitudinal axis of the nail. Some have said the nail has a trumpet-like appearance as the curvature increases from proximal to distal. Reported causes have included a hereditary predisposition, psoriasis, wearing of narrow shoes, subungual exostoses, osteoarthritis of the distal phalanx and the taking of beta blockers.

Clinical

A pincer nail is a one with abnormal transverse curvature along the longitudinal axis of the nail. The patient may complain of pain from the nail as the lateral edges dig into the tissue. Inflammation and bleeding may occur in the form of an ingrown nail.

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