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My dog is vomiting, constipated, and lethargic. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 11 years and 5 months old | 33 lbs

Hi there, my dog Molly who is 11 years old has been throwing up at least twice a day the last 3 days. She is constipted and cannot poo. She’s waking me up at night to go outside to the bathroom. She is lathargic and lays in bed all day, not normal for her.

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on October 30th, 2019

Poor Molly! Vomiting for three days is very concerning. If she's constipated and hasn't been able to poop, it's possible that she may have an intestinal blockage. This sounds like quite a severe problem, so I would recommend taking her to the vet today to be seen. Your veterinarian can examine her and take some x-rays if needed to help determine why she can't poop, and will advise you on what kind of treatment is needed depending on what is found.

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