hairy foot warts on the left hind hoof (Brown, Kilgo et al. , 2000). Contrary to what the name implies hairy foot warts are not warts at all. Viruses cause warts; bacteria cause hairy foot warts. The exact causative agent is not known, but evidence suggests that one or more species of spirochete of the genus Treponema is responsible.
Digital Dermatitis (Hairy warts) Digital dermatitis is a highly contagious, erosive infection usually affecting the skin on the bulbs of the heel but it can also be found between the digits or in the area of the coronary band.
Footbaths for the Treatment or Control of Hairy Heel Warts (Digital Dermatitis) in Dairy Herds: Summary of Seven Studies A. Hoffman Introduction Lameness decreases milk production, reproductive efficiency, and the health and welfare of the dairy cow.