Kent the podiatrist here, removing a painful corn from the lateral sulcus of the fourth toe using a number 15 scalpel. These corns form when pressure builds up from a few different factors: the bone pinching against the ground, the toe rotating due to tendon pull, and the toenail digging into and pinching the surrounding skin. Over time, this creates a hard, painful lump that can make every step uncomfortable. In this case, we remove the corn, carefully trim the nail back, and may use a toe prop