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Dog has diarrhea, won't eat, normal bloodwork. What should I do?

Updated On September 23rd, 2025

My dog was vomiting...took to vet all bloodwork normal...now he has had diarrhea for 3 days and won't eat

5 Answers

Most Helpful Answer

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Answered By Laura E. McRae

Veterinary Technician

Published on January 25th, 2015

I recommend that your contact your vet's office to schedule a follow-up appointment. Your dog may need further diagnostics to determine the cause of the vomiting and diarrhea. While blood work is an excellent and worthwhile diagnostic tool (and I commend you on having it done), it does have limitations. Blood tests are extremely useful for looking at the overall health of your pet. From the tests, a vet can learn if your pet's vomiting is caused by an underlying medical condtion like diabetes, kidney or liver disease, or an infection. Blood work can also reveal if your pet is dehydrated from the vomiting. Many of these problems may not be obvious on a simple physical exam, but if caught early can be successfully treated or controlled, giving your pet a longer and better quality of life. Sometimes blood work can lead to a definitive diagnosis, but oftentimes blood work results guide us as to what the next diagnostic steps should be (radiographs, ultrasound or more specific blood testing).

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10Pet Parents found this answer helpful

Related Answers from Veterinarians

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    Answered By Dr. Paula Simons

    Veterinarian

    Published on

    It may be time to take your dog back to the vet for a follow up examination. I would highly suggest doing additional diagnostics like X-rays and an ultrasound.

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    2Pet Parents found this answer helpful

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    Answered By Debi Matlack

    Veterinary Technician

    Published on

    Despite the normal bloodwork, your pet could still have pancreatitis or some other condition. At this point, if labwork continues to be normal, your pet will be treated symptomatically, with fluids and fasting to support him and let his gut rest while he gets over this episode. Unfortunately we can't always get definitive answers and we have to treat what we can. Follow your vet's advice and ask lots of questions, anything you don't understand. That's part of their job, too.

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    6Pet Parents found this answer helpful

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    Answered By Debi Matlack

    Veterinary Technician

    Published on February 25th, 2015

    I recommend getting your pet in to be seen by your veterinarian right away. Continued vomiting and diarrhea together are very concerning and can lead to dehydration and electrolyte imbalance as well as low blood sugar. She might have eaten something that either disagreed with her or something that has gotten stuck somewhere in her gastrointestinal tract. She could be sore from a hidden injury you are unaware of, she could have been exposed to some sort of toxin or irritant in her environment or this could be early signs of another condition or disease process. Your pet may need IV fluids to help support his/her system and to be fasted at the same time in order to give the gut a rest. Your vet can do an exam, blood work and possibly x-rays to determine the cause of the illness and suggest an effective treatment plan.

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    Answered By Shaneez Wallani, DVM

    Veterinarian

    Published on June 14th, 2017

    Blood in the stool and diarrhea could be caused by parasites, change in diet toxin ingestion, infectious diseases, blockage in the intestines caused by ingestion of a foreign body, or a mass/growth in the gastrointestinal tract. In the case of an unneutered male dog, prostate disease is a possibility as well. Blood in the urine could be due to a urinary tract infection, crystals in the urine, stones in the urinary tract, a mass, toxin ingestion, or trauma to the area. It is important that you have Tom seen by a veterinarian immediately to help determine the cause of the blood and to start treatment. Diarrhea and blood in the stool can lead to dehydration and anemia, and can be very dangerous if left untreated. If you notice him straining to urinate/unable to produce urine, this is a medical emergency and can be life threatening.

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    3Pet Parents found this answer helpful

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