My dog has a painless bump under his neck skin. Should I see a vet?
Hi there! Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign growth or a malignant growth such as a mast cell tumor, melanoma, among many other possibilities. I recommend you have Houdini evaluated by your veterinarian for a test called fine needle aspirate which is an easy, quick and pain-free procedure which in the majority of cases will help reach a diagnosis to identify what the best course of action is based on the findings. In some cases, a biopsy is needed for a diagnosis. If it truly is benign then removal is not necessarily recommended. However, if it is malignant and it has not spread to other locations, then surgical removal is recommended. Good luck! Keeping my fingers crossed that it is something benign.
Updated on September 23rd, 2025