Warts are little rough, grainy bumps caused by HPV (yep, the same virus family that can cause trouble in intimate body parts) ...

Hammer toes, bony deformities, and other foot irregularities can contribute to corns, explains John Giurini, DPM, the co-director of the Foot & Ankle Center of Harvard Medical Faculty Physicians ...

A common cause of corns is wearing shoes that don't fit properly. The Toe Bro spends the majority of the video cutting out a gnarly corn from the ball of a patient's foot.