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My dog is vomiting blood and won't eat or drink. What should I do?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 1 year and 2 months old | 22 lbs

My dog has thrown up several times today beginning around 1:00 p.m. and has continued to do so every few hours. After the first couple of episodes the vomit was thick with clear mucus. She's been eating grass to settle her stomach. About 10 p.m. there was blood in her vomit. She does not want to eat or drink anything. She's had 1 (possibly 2) normal bowel movements today.

1 Answer

Most Helpful Answer

Linda G,  MS, DVM

Answered By Linda G, MS, DVM

Veterinarian

Published on February 11th, 2018

Hello. I am so sorry for your concerns about Sweet Pea's vomiting. There are many things that cause vomiting, from bacterial/viral infections, indiscriminate garbage eating, ingestion of a foreign body, stomach twists ( volvulus ), & intussusceptions. The blood is probably just from small capillaries in the cardia of the stomach or the esophagus that have broken from all the retching. It would be nice if you could have her seen tonight, where at least an anti-nausea medication can be given to slow down the vomiting. If not, you can administer about 5 mg of Pepcid, & please have her seen tomorrow. You do not want her to get worse by becoming dehydrated. You can offer her ice cubes to lick on, but no solid food or water for her to gulp down. Try to keep her from eating more grass as this will just stimulate her to vomit again. I hope Sweet Pea is feeling better tomorrow. Thanks for using Petco Pet Education Center, formerly Petcoach.
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