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Q&A: My Dog Hasn't Pooped in 3 Days—What's Wrong?

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Dr. Mark is a veterinarian. He has been working with dogs for more than 40 years.

If your dog hasn't pooped in multiple days, something is definitely off. Learn what you can do to help.

If your dog hasn't pooped in multiple days, something is definitely off. Learn what you can do to help.

Did Yunnan Baiyao Make My Dog Constipated?

"I took my dog to the vet 5 days ago and we found out that she has a tumor and is bleeding internally. My vet does not want to remove the tumor because she is bleeding into her abdomen, but they did recommend a Chinese medication called Yunnan Baiyao to slow down the bleeding. I purchased it, gave it to my dog on Sunday, and then took her for a hike. She has not pooped since then, and it has been 3 days. I have been feeding her liver and ground turkey.

Do you think the constipation is caused by her food, the medicine, or maybe her cancer? What should I do?" —Maria

Common Side Effects of Yunnan Baiyao

Without knowing what kind of tumor is in your dog's abdomen, I am not able to tell you if this is related to her constipation. (Did she have an ultrasound to see if it is blocking her bowel?)

I can tell you that it is unlikely to be caused by the Yunnan Baiyao. No one outside of their factory is sure what is in that product but diarrhea is a much more common side effect of Yunnan Baiyao than constipation. (1)

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How to Help Ease Your Dog's Constipation

Does your dog still have an appetite? You did not mention in your question why you switched her to liver and ground turkey, but if she is eating only meat and not getting any fiber, that may also be causing her to have very little stool in her bowel, which is not really constipation.

Consider Adding Fiber to Your Dog's Diet

The best solution, if she is still interested in eating, is to add fiber through raw pumpkin (not pumpkin pie filling, which has spices added that might harm your dog). This article will give you more details on using pumpkin to help her.

If the pumpkin is not enough, your dog will need to be examined by the vet who first saw the tumor. They can tell you if her bowel is empty or if the stool is dry and impossible to pass. You should do this before giving any other medications.


  1. Li, B., Feng, S., Wu, Z. H., Kwong, J., Hu, J., Wu, N., Tian, G. H., Shang, H. C., & Qiu, G. X. (2019). Adverse drug reactions of Yunnan Baiyao capsule: a multi-center intensive monitoring study in China. Annals of translational medicine, 7(6), 118.

This article is not meant to substitute for diagnosis, prognosis, treatment, prescription, or formal and individualized advice from your veterinarian. Animals exhibiting signs and symptoms of distress should be seen by a veterinarian immediately.

© 2022 Dr Mark

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