The difference between corns and plantar warts includes different causes, different places of occurrence, and different symptoms. 1. different causes: corns are caused by long-term pressure, friction and other physical stimulation of the hands and feet, not infectious; plantar warts are caused by the human papilloma virus infection of the plantar skin, benign superfluous organisms, contagious, can be transmitted through direct or indirect contact. 2. different parts: corns are found on both sides of the feet, soles, lateral skin of the toes, and occasionally on the hands; metatarsal warts are found on the front part of the palm of the foot, the heel part of the foot, and between the toes of the pressured place. 3. Symptoms are different: corns are pea to broad bean sized, yellowish, conical keratinous plugs, pressure and pain, standing, walking, wearing shoes can cause pain and other symptoms; metatarsal warts lesions for the first time for the small shiny pimples, followed by a gradual increase in pimples, pimples pressure to form a callus-like plaques or flat pimples, the surface of the rough, for the yellowish or tawny, with a keratinous ring, pain and other symptoms. It is recommended that if the patient can not clearly distinguish between corns and plantar warts, it is best to go to the regular hospital dermatology department, after a clear diagnosis, in accordance with the doctor’s instructions reasonable treatment.