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Updated on September 23rd, 2025
Pet's info: Dog | American Pit Bull Terrier | Male | unneutered | 1 month and 10 days old | 5 lbs
My puppy had diarrhea yesterday and today I gave him his parvo and dewormer medicine. Today he is very lethargic and still has diarrhea. He finally pooped out a worm and was very happy and energetic. And then he fell asleep. He just woke up again and he is lethargic and energy is low again. Is this most likely because of worms or should I be worried?
2 Answers

Answered By Justin Plunk, DVM
Veterinarian
Published on September 11th, 2017
Answered By Shaneez Wallani, DVM
Veterinarian
Published on May 6th, 2019
Poor Lyla! Diarrhea and vomiting could be caused by toxin ingestion, parasites, change in diet, infectious viral diseases such as parvovirus, blockage in the gastrointestinal tract caused by ingestion of a foreign body, or a mass/growth in the gastrointestinal tract. Please make an appointment to have Lyla seen by a veterinarian as soon as possible, as severe vomiting and diarrhea can lead to dehydration, and can be dangerous if left untreated. I recommend you take Lyla in to the vet, and take in a fecal sample from Lyla when you go. Your vet will likely want to test the sample to see what kind of parasites Lyla may be dealing with so that they can be treated for accordingly.
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