Corns are mainly due to the long-term extrusion or friction of the foot skin, which leads to localized keratotic hyperplasia damage of the skin, and can be removed by medication, physical therapy, surgery and other methods. Corns are mainly caused by long-term friction and extrusion of the skin of the feet, which then gradually form hard conical keratosis, leading to the formation of corns, especially when wearing inappropriate shoes and socks for a long time, long-distance standing or walking, and the existence of deformities of the foot bones, etc., which can all induce corns. Once diagnosed with corns, the first step is to remove the triggering factors, such as avoiding long-term friction and pressure, choosing the right shoes; if there are foot deformities, the foot deformities can be corrected in a timely manner in conjunction with hand and foot surgery. At the same time, patients can first use hot water to soak their feet, scrape off the softened keratin, and then externally apply corns cream to the lesions to soften and remove the keratin. For patients with ineffective medication, physical methods such as cryotherapy and laser therapy can be used for removal. For the above treatment methods are ineffective, or the skin lesions are large, can be used under the guidance of the doctor surgical treatment to remove the corns, after the operation should keep the local dry, clean, to avoid the occurrence of infection. Therefore, once corns appear and affect the normal walking function, you should go to the hospital as soon as possible, under the guidance of the doctor’s standardized treatment.