A callus is an area of thickened skin located on the bottom of the foot, in most cases on the ball of the foot and/or heel. The most common cause of calluses on the ball of the foot is “declination” of one or more of the five metatarsal bones present in each foot. Since one or more of these metatarsal bones is/are lower than the others, the bone(s) bear more weight. A callus forms under the end of the metatarsal bone in order to protect the bone from trauma. In the case of some severe calluses, a small core or “nucleus” can be found within the callus and if present, the patient usually feels as though he/she is walking on a small pebble. The procedure most often performed at Laser Foot Surgery Center is as follows:

A small incision (approximately 1/8 inch) is on the top of the foot at the neck of the affected metatarsal bone. Using a special drill, a small cut is made across the metatarsal bone and the head is repositioned toward the top of the foot. This redistributes the body weight among the metatarsal heads and the callus fades. If the callus has a “nucleus,” this is removed from the bottom of the foot with a laser and is sent to our pathology lab for analysis. In most cases, this “nucleus” is a “Porokeratoma” or a benign “plugged sweat gland.”