Pincer toenails can be a literal pain, digging into the toe's delicate skin. A pincer or pinched toenail curves inward instead of rising straight from the nail bed. If you spot any nail curving downward along the sides, you may be developing this common but troublesome problem. But take heart - with diligent home treatment, you can redirect pincer toenail growth to a normal shape. What Causes Pinched Toenail Curving? Several factors can lead to toenails curling into a pincer or trumpet shape: Genetics Some people inherit a tendency for curved thicker nail growth making them...