Interdigital cysts are firm, raised subcutaneous inflammatory lesions found in and on the interdigital webs of the paw. The cause is usually a traumatically ruptured hair follicle. The surrounding ...

Cysts can be as small as a pea or as large as ... Folliculitis causes small, red bumps that can occur anywhere on your skin where you have hair if something clogs or infects a hair follicle.