toenails growing curved
Pincer Toenails A pincer nail is a medical condition were the sides of the toenails become curved inwards. The condition is also called in-curved nail, trumpet nail, convoluted nail, omega nail, and transverse over-curvature. The process can take years to develop and as the nail progressively becomes more and more curved the edges of the nail can begin to irritate the toe and often cause an ingrown toenail.