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My dog is vomiting clear mucus, lethargic, and won't eat. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Toy Poodle | Male | 8 lbs

My dog is vomiting clear mucus and is lethargic and isn't eating. What is wrong with him, and should I bring him to a vet? He's about 5 years old and is a toy poodle.

2 Answers

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on June 27th, 2019

Coco needs to be examined by the veterinarian today. The vomiting could be due to many conditions including eating something he shouldn't have, bacterial over growth, parasites (worms and giardia) or even something more severe like organ dysfunction or intestinal blockage (which is fatal without treatment). Try to remember to take in a stool sample. The doctor will check him and recommend diagnostics based upon the examine findings and history. Many times a bland diet can help and then a slow, gradual introduction to the normal food can be done. A bland diet can consist of 25% boiled white meat chicken and 75% boiled white rice. This should all be plain. I hope Coco starts feeling better quickly! Please feel free to post any additional questions!

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on May 7th, 2017

    I'm sorry CoCo isn't feeling well! You are doing the right thing by fasting her, and I would do that for 12-24. After this time, feed a bland diet of boiled white meat chicken (no bones) and white rice in small amounts several times a day for a couple of days. Then slowly add back in her normal diet. If the vomiting continues in the absence of food, she vomits the bland diet, develops diarrhea, stops drinking water, starts vomiting water, or becomes very lethargic, she will need to see a vet right away.

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