Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed | Male | unneutered | 2 years and 3 months old | 2.5 lbs
There is a ball shaped mass next to my dogs penis it is only on one side and moves around like he has a ball under the skin and i am concerned it could be a tumor. He is a Chihuahua. The mass seems to be able to move the entire length from belly almost to his balls. Should i be worried?
1 Answer
Published on December 2nd, 2018
Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!
1Pet Parents found this answer helpful
Book an appointment with the pros – our expert vets are here to help.