Plantar warts and corns can be distinguished by their cause, number, location and clinical manifestations. 1. Etiology: plantar warts are caused by viral infections, while corns are caused by prolonged friction, irritation and extrusion, resulting in hyperplastic keratosis. 2. Quantity: Plantar warts are multiple, while corns are usually single. 3. Location: Plantar warts are found on the toes, whereas corns are found on the toes, lateral edges of the feet, and other friction-affected areas. 4. Clinical manifestations: metatarsal warts are warty growths with a rough surface and black bleeding spots, which bleed significantly after picking or trimming. The most important thing to remember is the fact that the skin of the toes, the bones and the skin of the bones is prominent, no skin texture, flat, yellowish corns like rash structure, in the pressure or walking pressure when the pain is obvious. Patients should be under the guidance of a doctor to distinguish, symptomatic treatment, to avoid self-diagnosis of errors resulting in adverse consequences.