Petco Text Logo
Petco Pet Logo

Why is my dog underweight with loose stools and low appetite?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 3 years and 6 months old | 50 lbs

Loose stools, low appetite, brown stools, under weight

1 Answer

Most Helpful Answer

Image profile

Answered By Megan, DVM, CVA

Veterinarian

Published on June 5th, 2018

Poor Rosemary. Unfortunately, there are several things that can cause these symptoms like parasites, inflammatory bowel disease, pancreatitis, toxins, food allergy, bacterial or viral infections, and much more. I would have your vet take a look at her. Your vet will be able to do a fecal, blood work and even x-rays if needed. Your vet will be able to get her started on a treatment plan to help her feel better. I hope this helps!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored