Ask a Dog Vet and Get Answers to Your Dog Health Questions
Hello, I am sorry to hear about your dog. Anytime I have a pet who has had a cancer like hemangiosarcoma who shows up with new lumps or bumps, I would strongly advise having your vet look at the skin lesions and do a fine needle aspirate and cytology. I always feel it is better to be safe than sorry with these things as you would feel awful if you did nothing and it turned out to be cancerous. That being said, I don't think it is an emergency that you take your pup in, I would try to do it in the next week.
If you have any other questions about your dog, please let me know! If you do not, and you feel this information was helpful, please take a moment to rate our conversation so that we can know if you were satisfied and can close your question if you feel it was answered. Thank you and good luck!