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Why is my dog's poop sometimes yellow-brown and other times dark?

Updated On September 23rd, 2025

Pet's info: Dog | Golden Retriever | Female | unspayed | 5 months and 30 days old | 45 lbs

Luna's poop sometimes shows a mixture of the usual dark brown and yellowish brown colour. While other times, its completely dark brown. What could that mean?

1 Answer

Most Helpful Answer

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Answered By Vanessa Yeager DVM MPH

Veterinarian

Published on August 6th, 2018

Hi there and thanks for posting! Sometimes stool can change due to a recent change in diet or eating something out of the ordinary or unusual. Other causes can be certain infections such as viral, bacterial, or parasitic infections. Endocrine diseases such as Addison's disease or organ disease of the liver, gallbladder, or pancreas can also cause the color of stool to change. If the color changes continue, you may consider taking Luna in to be seen be her veterinarian to just sure there are no underlying conditions causing the changes.

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