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My senior dog feels bony. Is muscle loss normal for her age?

Updated on September 23rd, 2025

Pet's info: Dog | Chihuahua | Female | spayed | 13 years old | 12.5 lbs

When Karina was having tummy and weight issues we started her on HILL SCIENCE METABOLIC food...she is at a GOOD weight for her age (just turned 13)...she is 9.6 lbs and all labs are perfect. She is active, happy and healthy. My QUESTION: She is losing muscle. She "feels" so boney. Ribs and shoulder blade etc... Is that normal? Should I add a treat protein fat food maybe 1x a week ??

1 Answer

Most Helpful Answer

Debi Matlack

Answered By Debi Matlack

Veterinary Technician

Published on June 4th, 2019

You should be able to feel the bones with gentle pressure over the ribs and spine. Without a photo, I can't say by looking what kind of body condition she has, but from the description above twelve pounds is a good-size Chihuahua. This chart may help you visualize if she is underweight or not. https://www.aaha.org/public_documents/professional/guidelines/weightmgmt_bodyconditionscoring.pdf
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