Plantar warts are caused by viral infections and corns are caused by physical friction. The two can be differentiated by the following points: the site of the rash, the rash performance, conscious symptoms, etc. 1. Rash site: corns are usually found in the friction area between the toes and shoes. Metatarsal warts are found on the forefoot and toes, and tend to occur more often. 2. Rash manifestation: corns can be seen yellow, cone-shaped keratin embolism. The surface of the rash of plantar warts can be seen pinpoint-sized black spots, which is caused by the rupture of capillaries and bleeding. 3. Self-awareness symptoms: patients with corns can have pain when standing or walking, which is due to the keratinous plug compression of the nerve formation. The plantar warts are usually asymptomatic in the early stages of the disease. When you can’t identify whether the rash is a plantar wart or a corns, it is recommended that you go to the hospital in time for examination and active treatment under the guidance of the doctor.