Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Large (61lb +) | Female | spayed | 17 years and 2 months old
I have a 7 year old female Mastiff and she has been skinny for a while now she eats normally and has a little bit of a tummy but you can see her spine and rib bones very clearly. I have 2 others and none of them look like this. What is it?
1 Answer
Published on March 18th, 2018
Make sure you are feeding a good quality food and giving her as much as she wants to eat. Then I would check a stool sample for intestinal parasites. If she continues to lose weight a veterinary exam and lab tests to diagnose the reason are indicated. She is a senior dog and could have a heart problem or organ failure, or possibly cancer. These symptoms are general so an exam and testing are needed for a diagnosis. Once they know the reason then they can start the appropriate treatment. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Georgina.
1Pet Parents found this answer helpful
Book an appointment with the pros – our expert vets are here to help.