Oral papillomas are caused by a virus, just like human skin warts. Because they are viral, they are transmissible from dog to dog. The virus is present in the papillomas, and the infection is spread by direct contact with the papilloma in an infected dog's mouth.

How do dogs get papilloma virus?

The infection is transmitted via direct contact with the papillomas on an infected dog or with the virus in the pet's environment (on toys, bedding, food bowls etc.). The virus requires injured skin to establish infection; healthy skin will not be infected. The incubation period is 1-2 months.

How do you treat canine papillomas?

Infected papillomas can be painful and require a course of antibiotics. Occasionally, a dog will have so many growths that eating becomes problematic. When this occurs, the papillomas can be surgically excised or treated with cryotherapy (freezing).