How to make difference between verruca and corn CRITERIA VERRUCA CORN Others name Plantar warts Callus Causation Human Papilloma Virus 1,2,4,57,60,63,65,66 & 156 Increase pressure & frictions on the skin. Contagious Highly contagious. Not contagious. Incubation Long a couple of months to a year. A long period of time. Striations Interrupt the striation on your […]