* Trauma
* Infection (e.g., bacterial, fungal)
* Autoimmune disease (e.g., pemphigus foliaceus)
* Cancer (e.g., squamous cell carcinoma)
* Breed-specific susceptibility (e.g., cocker spaniels are more prone to foot problems)
What could cause a reoccurring abscess on cocker spaniels foot?
* Foreign body (e.g., grass awn, thorn)