Ask a Dog Vet and Get Answers to Your Dog Veterinary Questions
I am sorry to hear you are worried about your dog's toe. I am a veterinarian and will do my best to help.
A swollen digit could be from an injury or fracture, an infection, or could be a tumor ( cancerous or benign). How long has it been swollen? Is it painful to him?
Can you post a picture of it here?