Are corns contagious? Corns are actually formed due to the long-term stimulation or friction on the skin of the sole or between the toes, which causes the skin to keratinize. Occasionally, they can also appear on the hands or arms. Since corns are formed due to the long-term stimulation or friction that causes the skin to keratinize, they are not at all contagious.
Reference: http://www.skinkang.com