Petco Text Logo
Petco Pet Logo

Why is my dog losing weight with yellow, runny poop despite eating?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 2 years and 3 months old | 11.7 lbs

My dog was at the vet a few weeks ago with an infected anal gland and had weight loss no worms were found but had worming tablets and also antibiotics. Now she’s lost more weight and noticed her ooo is runny and yellow. Now she still acts completely normal and eats meat, rice and veggies twice a day.

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 18th, 2019

Poor Pip! She is so lovely. I'd take her back into the vet this weekend for blood work and a urinalysis. There's something causing her weight loss and diarrhea, and it could be a digestive issue. I think at this point, further testing is needed. 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