Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed | Male | neutered | 2 years and 2 months old | 13 lbs
My dog is two years old with no known medical history. Nothing about his behavior or appetite has changed but he has a quarter size lump on his tail. Took him to the vet and did a week of antibiotics with no change, still there. Blood work came out fine. My biggest concern is that it doesn’t bother him so it doesn’t seem like a bite or infection. The vet said the next step would be poking it to get cells but commonly can be inconclusive. Any advice? Super worried, he only two years old.
1 Answer
Published on August 21st, 2018
Your vet is correct. You actually have a choice now: a fine needle aspirate where a little tissue is harvested from the lump and then examined to determine what kind of growth this is. Should it be benign, or just inflammatory, treatment would be either benign neglect or treating the inflammation or possible infection. Should it be malignant, then your vet will probably elect to amputate the tail well above the tumor and then this would often be curative depending on the type of tumor. In that case it is actually good that it is in the tail and not somewhere else on the body. Trust your vet, he is on the right track.
1Pet Parents found this answer helpful
Book an appointment with the pros – our expert vets are here to help.