My dog is sick, won't eat, vomiting, and pooped worms. What to do?
Updated On September 23rd, 2025
My dog doesnt want to eat, vomitting and has a phlem like in it, he has fever yesterday but no fever now, he pooped with worm this morning. What should I do? And what possible sickness does my dog have?
5 Answers
Most Helpful Answer
Published on June 19th, 2018
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Your dog appears to be young (under a year) from what I can tell based on the pictures and information you provided. The most likely diseases are as follows: 1. Parvo, a virus that primarily attacks the immune system and intestines of dogs and is very lethal if left without supportive care. 2. Intestinal parasites which can cause intestinal blockage and even anemia (depletion of red blood cells). 3. Other viruses with varying severities. This is not an exhaustive list, just the most common things for a puppy. They will all lead to dehydration and other secondary issues which can all be severe enough to cause death. Whatever the underlying disease, he looks very ill and needs attention from a veterinarian immediately. I would recommend taking him to your nearest emergency veterinary hospital as soon as possible. I hope this helps and your dog gets better!
2Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on
Your poor pup! There could be a couple reasons behind his illness, such as an infectious disease, a foreign body, pancreatitis, or eating something rotten. While intestinal worm burdens do cause vomiting, he would have to have a very heavy burden to cause his symptoms. I would have him seen by a vet for this problem. He needs a deworming treatment for the worms, and he should also be examined and treated for the vomiting. I'd take him into the vet first thing in the morning. Best of luck, I hope this helps!
1Pet Parents found this answer helpful
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Published on January 13th, 2017
I am so sorry your puppy Ted has been ill. There are a couple of possibilities as to why he is so sick. 1) Parvovirus infection- if he is unvaccinated or not fully vaccinated and has been outside at all, then he could have picked up this extremely contagious and potentially deadly virus. It causes vomiting, lack of appetite, lethargy and loose stool +/- blood. He needs treatment right away by your local vet if you suspect he may have this. 2) Foreign body obstruction- if he likes to eat things in the home and seems to have a painful belly then take him in immediately to your local vet for x-rays of his belly and further care. 3) Other disease- severe anemia, bacterial infection, etc. If you cannot get him in right away then try to offer him small amounts of Pedialyte (non-flavored) and Pediasure or cans of baby food for nutritional support. However if he keep vomiting up everything he eats, then the vet can help by giving him anti-vomit medication, fluids to rehydrate him and further medicine depending on what is causing his illness. Poor pup! I hope he gets better soon!
1Pet Parents found this answer helpful
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Published on October 14th, 2017
I would recommend that Jack get checked out by a vet as soon as possible. If he can't keep down fluids he will become dehydrated very quickly. He may have stopped eating while you are gone because he missed you, but it might have also been a coincidence in timing and that is just when he started showing signs of illness. Vomiting and lethargy in a puppy can be caused by dietary indiscretion, intestinal parasites, GI blockage, gastroenteritis, bacterial or viral infection (such as parvo virus), among others. After a thorough medical exam and questions on his vaccination history, the vet may recommend diagnostics such as bloodwork, parvo testing, or x-rays to see what could be causing his illness.
1Pet Parents found this answer helpful
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Published on February 9th, 2017
He might have eaten something that either disagreed with him or something that has gotten stuck somewhere in his gastrointestinal tract. He could be sore from a hidden injury you are unaware of, he could have been exposed to some sort of toxin or irritant in his environment or this could be early signs of another condition or disease process. I recommend getting him seen by your vet for an exam, labwork and possibly x-rays. Based on these results, your vet will be better able to determine what is going on and advise you and the best treatment plan.
1Pet Parents found this answer helpful
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