Petco Text Logo
Petco Pet Logo

Puppy has constant bloody diarrhea. What should I do and feed?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 3 months and 16 days old

My mums puppy 16 weeks old has had runny poos constantly since she got him. They have started to include blood. Past two days has been very mucus and bloody. He’s fine in himself and we’ve had a vet check him out but they weren’t helpful and just sent him away with stool hardner and a few pills which hasn’t helped. Do you have any suggestion on what our vet could do or what’s causing it also what’s best to be feeding him for this?

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Elizabeth

Veterinarian

Published on August 17th, 2019

Poor Haggis! The diarrhea could be due to many conditions dietary intolerance, bacterial over growth, parasites or other even organ disease. If the diarrhea has continued beyond 24 hours, I recommend to have him examined by the veterinarian again (or another veterinarian). With continued diarrhea, there are often bacterial shifts in the gut that will make matters worse regardless of the initial cause. Make sure to bring in a sample of fresh stool. The doctor will check him for parasites and bacterial over growth. 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. he will likely need a probiotic as well as an antibiotic. A good diet in general is Royal Canin. It is low residue and highly digestible. I hope Haggis starts feeling better quickly! Please feel free to post any additional questions!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

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

Sponsored