Updated On September 23rd, 2025
Pet's info: Dog | Chihuahua | Female | unspayed | 5 years and 6 months old | 17 lbs
Hi my dog is a chihuahua and she's had these bumps on her stomach for a long time now, it doesn't seem to grow nor bother her when we rub her stomach but I still want to look into it. Should I be worried? Do you have an idea of what it could be?
4 Answers
Published on January 30th, 2018
Thanks for using Petco Pet Education Center, formerly Petcoach! This looks like a mammary tumor. This could be a benign or malignant growth. 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 her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!
3Pet Parents found this answer helpful
Published on June 24th, 2017
You are right to be concerned - all new lumps and bumps should be evaluated thoroughly! It is a little difficult to tell from the photo, but this lump is in the location of her umbilicus, and it is suspicious for an umbilical hernia. It could also be some other type of a mass, but the only way to know for sure is to have it evaluated by your vet. Your vet can determine whether or not it is a hernia and/or take a needle sample to determine the type of cells. If it is a hernia, they can usually be routinely fixed during her spay procedure.
6Pet Parents found this answer helpful
Published on December 30th, 2017
Thanks for using Petco Pet Education Center, formerly Petcoach! These could be benign or malignant growths. 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 her evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and best wishes!
1Pet Parents found this answer helpful
Published on May 19th, 2017
If it does not resolve quickly (burst open or disappear), this kind of lump/growth needs to be ideally assessed by your veterinarian to have a definitive and specific answer. Usually there are two ways your vet can do that a part from examining it directly during physical examination. A biopsy can be taken under local or general anesthetic, otherwise a smaller sample through a fine needle can be aspirated (this technique is called FNA= fine needle aspiration). Differentials include skin cysts, infections, benign or more sinister type of tumors (very very unlikely given her age). Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
3Pet Parents found this answer helpful
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