Corns on the feet are caused by thickening of the stratum corneum induced by long-term pressure and friction. Corns are prevalent in adult females and often involve prominent areas of stress, mainly due to long-term mechanical stimuli such as pressure and friction, resulting in overgrowth of the stratum corneum. Corns are commonly found on the lateral aspect of the little toe, the medial aspect of the bunion, the heel and the back of the toes, and are characterized by light or dark yellow conical corns, which are often painful or painful to the feet when moving, and can interfere with the patient’s activities. Patients with corns should seek timely medical attention and be treated under the guidance of a doctor. Daily attention should be paid to avoiding extrusion and friction, and to choosing suitable shoes.