Ask a Dog Vet and Get Answers to Your Dog Veterinary Questions
This is Dr. KV. I'm here to help with Bella today. Can you tell me..are you seeing a lot of blood in her stool?
Ok, thank you for the additional information. A reasonable amount of blood in the stool can lead to fairly severe dehydration. It is definitely possible that the diet change has resulted in the bloody diarrhea, but to be sure, a fecal test to rule out gastrointestinal parasites would be a good idea. Often times, when diarrhea is bloody, dogs need medications to help recover. Is Bella's appetite normal? Any vomiting?
Ok, great to hear she is not vomiting today. I recommend calling your vet to set up an appointment. If you can collect a fecal sample to bring with you, they can check for parasites that may require specific medication. They also can give Bella some fluids to rehydrate her. Vomiting and diarrhea is a bad combination, so rehydration will be the best way to help her feel better as soon as possible.
It could be that Bella is having a reaction to something in the new food. Another possibilty is that she is very sensitive to changes in her diet, so simply switching from one food to another caused severe upset. If a fecal test is negative, and if your vet finds nothing else wrong, than it is likely a dietary issue. If this is the case, then in the future it will be important to make any diet changes very slowly over a couple of weeks to minimize another upset tummy episode. Some dogs are just very sensitive.
Please feel free to reach out if I can assist you further. Good luck with Bella!