Corns on the feet is due to long-term pressure and friction on the skin of the foot, resulting in the formation of local keratin layer thickening, mainly and incorrect shoe habits, improper walking style, long standing, walking, etc., as follows: 1, shoe habits, walking incorrect: corns and shoes worn shape, quality, size, material, etc. have a direct relationship, if often wear narrow and tight shoes, especially high-heeled shoes. The skin of the foot is prone to friction with the shoe, plus the habit of walking with the center of gravity shifted back, aggravating the force on the palm of the foot is more likely to grow corns; 2, long standing, walking: long standing, walking, feet bear the body pressure for too long, resulting in poor blood circulation of the feet, friction is easy to appear lesions, healing and then repeatedly lead to keratin layer hyperplasia form corns. The two are often confused because they have similar symptoms, but the treatment is completely different and should be distinguished. For example, plantar warts are limited, slightly concave growths with a non-smooth surface. If the growths are removed with a scalpel, they may appear as black spots (blood or hematoxylin) or bleeding, whereas corns have a smooth surface and can be seen as clear, yellowish cone-shaped corns. In addition, squeezing pain is obvious in plantar warts, while pressure pain is obvious in corns. The appearance of corns should be promptly treated by a doctor, while patients with mild symptoms can reduce discomfort by replacing comfortable, breathable shoes and avoiding prolonged standing and walking. For those whose symptoms seriously affect their daily life, corneal exfoliators, laser treatment or surgery can be applied to remove the corns and relieve the symptoms.