Calluses are areas of thickened skin that form as a response to repeated friction, pressure, or other sources of irritation. Since repeated contact is required, calluses are most often found on your feet because of frequent walking and poorly fitting footwear.
Bent Toe Disorders (Hammer, Mallet and Claw)
A bent toe disorder is an oddly bent toe joint. Hammer, claw and mallet toes are often painful and commonly occur in one or more of the four smaller toes.