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My puppy keeps vomiting and has bloody diarrhea. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | American Hairless Terrier | Female | unspayed | 3 months and 25 days old

My dog is 15 weeks and 48 hrs ago she vomited once n was was pooping soft like stool with mucus n a lot of bright red blood all day she was still her normal self active, eating, etc. the next day her stool was back to normal n contained no blood but then the next day in the middle of the night she vomited again n poop soft stool with a little bit of bright red blood n mucus do you have any advice on what I should do or what path is the symptoms leading towards?

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2 Answers

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on June 27th, 2018

Hello, sorry to hear about Penny. It sounds like she may have intermittent inflammation of her colon (colitis). This could be associated with parasites in puppies this young. Other causes could include viruses such as parvo. Finally, any dietary indiscretion (getting into something they shouldn't have) could lead to this as well. I recommend that Penny is evaluated by her veterinarian to check her stools for any worms. Additionally, she may be fed a bland diet for the next 5 days, which may be composed of plain white rice, skinless and boneless boiled chicken, and low fat cottage cheese. If this does not improve clinical signs, then she should be checked by her veterinarian. Hope this helps and best of luck.

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    Answered By Silvia De Cecco, DVM, MRCVS

    Veterinarian

    Published on July 5th, 2018

    Diarrhea and vomiting are usually signs referring to a intestinal problem. It could be due to dietary indiscretion (i.e. eating something that he shouldn't, diet change), parasitic infestation, inflammatory disease (IBD inflammatory bowel disease), bacterial diseases or viral diseases especially if Zoey is not fully vaccinated (i.e.: parvovirus). 
You could starve her for 4-6 hrs then provide bland food, boiled breast chicken and rice for the next 24 hrs (small and frequent meals) and monitor but as you spotted blood in her faces, she is not 100% in herself for few days now and she seems restless and uncomfortable, I would suggest to have her checked by your veterinarian to perform a complete clinical examination as soon as possible. 
Please collect a fecal sample in case your vet would like to run some analysis. Good luck and post again on the forum if you need further advices. I hope my answer was helpful.

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