Corns are a disease caused by abnormal proliferation of the cuticle of the skin, usually caused by repeated localized skin friction and extrusion. Corns are more common in athletes, outdoor workers, more women than men, and relatively heavier people are prone to corns. It is caused by long-term external continuous stimulation of the skin on the soles of the feet. Patients who walk and stand for a long time, love to wear high heels or crowded shoes, and have foot deformities such as calcaneal exostosis are prone to corns. After the formation of corns should go to the hospital in time for treatment, you can do laser, electric cauterization, but also can be used externally corns paste, salicylic acid ointment and other drugs. The medication should be used according to the doctor’s prescription. Patients with corns should pay attention to wearing loose and soft shoes, try to avoid walking or standing all the time, wear socks when wearing shoes, to prevent the formation of corns on the soles of the feet due to friction.