Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

My 4-month-old puppy has diarrhea after eating grass. What's wrong?

Updated on September 23rd, 2025

Pet's info: Dog | Black and Tan Coonhound | Female | spayed | 32 lbs

Puppy has runny with grass stool after eating grass. She is 4 months old

2 Answers

Most Helpful Answer

David Elbeze, DVM, MRCVS

Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on August 10th, 2017

She might have eaten something spoiled that is causing this. withhold food for 8 hours then offer Emma boiled boneless chicken and rice every 4-6 hours in small portions. if she is eating and not vomiting, continue with this diet for 2 days.

After 2 days, you can put her back gradually on her normal food. if the diarrhea does not resolve, take Emma to the vet to get treatment.
Vote Icon1Pet Parents found this answer helpful

Related Answers from Veterinarians

  • Answered By Daniel Fonza, DVM

    Veterinarian

    Hello and thank you for posting your question! Emma is very cute! It sounds like maybe the grass could be causing the runny stool. This may be causing a bit of a dietary indiscretion. I would not rule out intestinal parasites until a stool sample is tested at your vet clinic though. I would get her stool checked for parasites and then if she is negative, start a bland diet of chicken and rice and add a probiotic such as Fortiflora and see if this helps. Of course, trying to deter her from eating the grass may help as well. I've had some clients be successful in stopping their pets from eating grass by applying some bitter apple to an area where the pet eats grass from. You can pick up bitter apple from most pet stores and online. I hope this helps! Please feel free to contact me with any other questions you may have!

    Vote Icon

    1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button