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My dog won't urinate or eat after surgery. When is it an emergency?

Updated On September 23rd, 2025

Pet's info: Dog | Great Pyrenees | Male | neutered | 6 years and 5 months old

My dog had surgery on Fri and has not urinated since. He is also reluctant to eat and drink. At what point is this a serious concern / emergency?

2 Answers

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on May 22nd, 2016

He should be rechecked by your vet or at the local veterinary ER today. He may be painful or still feeling the aftereffects of general anesthesia. This can last as long as 72 hours. If his bladder is full, the doctors can insert a urinary catheter if necessary to empty it. Medications can be administered or dispensed to alleviate pain which may make him comfortable. Supportive care can also be administered. SQ fluids may rehydrate him and perk him up.

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20Pet Parents found this answer helpful

Other Answers

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    Answered By Christie Long, DVM

    Veterinarian, Certified Veterinary Acupuncturist

    Published on

    You don't mention the type of surgery that your dog had, however not urinating for more than 48 hours is a serious situation. Either he's significantly dehydrated (so that he's not producing much urine) or there's a functional reason related to his urinary tract or the nervous system that's keeping him from urinating. Coupled with the fact that he's not eating or drinking well, I'd recommend going for an emergency visit to get his general condition assessed today.

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    13Pet Parents found this answer helpful

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