Corns and wart are two different types of skin diseases that can be distinguished by their location, cause of appearance, and clinical manifestations. Corns are gelatinous growths that occur between the toes or on the bottom of the feet, and are caused by repeated pressure and friction on the skin of the feet over a long period of time. It is often associated with wearing ill-fitting shoes for a long time, standing or walking for a long time, etc. With corns, the affected area is flat or elevated against the skin, with thickened skin and clear borders, the size of a soybean or larger, a skin damage that forms a certain translucent shape and generally does not appear to increase significantly. The patient can be treated under the guidance of a doctor with medications such as corneal cream and salicylic acid. If the symptoms are severe, they can be treated by laser and surgery. The wart, or common wart, is a benign superfluous skin lesion that can appear on various parts of the body, such as the hands, nail edges and feet, face, neck, forehead, back and soles of the feet. The disease is often caused by HPV infection. The surface of the wart is dry and rough. It is the size of a pinpoint in the early stages and then gradually becomes larger, causing bleeding if scratched or bumped. The wart on the bottom of the foot will show a noticeable thickening of the cuticle, and if left untreated, it will often appear more and more often. Physical therapy, such as cryotherapy and laser treatment, is preferred for the treatment of this condition. In daily life, whether you have a corns or a wart, you should try to avoid scratching to avoid affecting your recovery.