A dog not urinating for 36 hours after surgery is a potential emergency and requires immediate contact with a veterinarian. While 12–24 hours can sometimes be normal due to anesthesia, discomfort, or reduced water intake, 36 hours indicates a likely, serious issue that needs assessment.

How long can a dog not pee after surgery?

Your pet may not urinate within the first 24 hours after coming home. Keep in mind that if water intake is decreased, urine production will be decreased. In some cases, female dogs will hold urine for up to 48 hours.

Is it normal for dogs to not use the bathroom after being spayed?

It's not unusual for dogs to suffer from constipation after spaying. If she doesn't move her bowels by the fifth day post-surgery, ask your vet whether you might give your dog a stool softener. Your vet can recommend a specific brand and dosage.

How long is too long for a dog to go without peeing?

A healthy adult dog can typically go 8 to 10 hours without urinating—but that doesn't mean they should. Holding it in for too long isn't ideal. In fact, consistently waiting that long can lead to discomfort and increase the risk of urinary tract issues.

When should I worry if my dog hasn't peed?

You should worry and seek immediate vet care if your dog hasn't urinated in 12-24 hours (8-10 hours for puppies/seniors), is straining, crying, or trying but failing to pee, has blood in the urine, or seems lethargic, vomiting, or in pain, as these can signal a life-threatening urinary blockage or serious kidney issue. Even if they're peeing small amounts frequently, it warrants prompt veterinary attention for potential infections or stones. 

How to do Bladder Expressions on Your Pet

What is the 21 second pee rule?

Because researchers find that all mammals that weigh more than six-and-a-half pounds or so take about the same time to pee: 21 seconds, plus or minus 13 seconds.

How long is too long to not urinate after surgery?

If you haven't urinated for 6 hours, you may have urinary retention. This is fairly common after some surgeries. But it could become serious if left untreated. Treatment includes draining the bladder with a small tube called a catheter.

Why isn't my dog going to the bathroom after surgery?

After a procedure, a bowel movement can take anywhere from 3-5 days! Although that may seem like a long time for a furbaby that normally poops daily- this is actually a normal reaction to a surgical procedure. When a pet undergoes surgery, bowel motility is slowed down by the anesthetics and opioids that are used.

What can trigger a dog to pee?

Common medical reasons include urinary tract infections, diabetes, kidney disease, liver problems, hormonal imbalances, and certain medications. Increased water consumption naturally leads to more frequent urination, whether from hot weather, dietary changes, or underlying disease.

What is the 7 7 7 rule for dogs?

The "7 7 7 rule" for dogs is a puppy socialization guideline, originally by Pat Hastings, suggesting exposing puppies to 7 different people, 7 different locations, and 7 different surfaces/objects/sounds/challenges (variations exist) by about 7 weeks old to build confidence, resilience, and prevent fear or anxiety as adults. Key experiences include meeting diverse individuals, visiting different places like a vet's office or friend's house, walking on various substrates (grass, tile, carpet), and encountering new objects and gentle challenges (like tunnels or boxes).
 

When to worry about a dog after surgery?

You should worry about your dog after surgery if you see excessive bleeding/discharge, worsening swelling/redness, continuous vomiting/diarrhea, difficulty breathing, pale gums, extreme lethargy, or an open incision, as these signal complications like infection or severe pain, requiring immediate vet contact; otherwise, normal post-op signs include grogginess, slight appetite loss, and mild discomfort for the first day or two.

Can anesthesia cause inability to urinate?

A regional anaesthetic can directly affect the nerves to and from your bladder. For example a spinal or an epidural anaesthetic is often given for operations like hip and knee replacements. These can also affect your bladder so that you don't feel the need to empty and it overfills.

When should I worry about my dog not peeing after surgery?

If your dog fails to urinate within 24 hours after surgery, or if they show signs such as straining, vocalising in pain, a swollen abdomen, or behavioural changes, contact your vet immediately. Early intervention is vital to prevent serious complications like bladder rupture or kidney damage.

What does MiraLAX do for dogs?

Yes, MiraLAX is a readily available laxative for constipated dogs. MiraLAX is an over-the-counter laxative. It is an unflavored powder, which makes it perfect for mixing into your dog's food or a little bit of water. MiraLAX works by pulling water into your dog's GI tract, making the stool softer and easier to pass.

What happens when a dog doesn't go to the bathroom?

Complications of Untreated Constipation

If your dog's constipation goes untreated, it can become obstipation. This happens when the waste in the colon becomes so dry and hard that it can't be moved. The colon then becomes packed with stool and your dog is unable to pass it. This leads to a condition called megacolon.

How do you stimulate urination after anesthesia?

If you're having trouble urinating after surgery, here are a few strategies that may work:

1. Drink plenty of water throughout the day.
2. Move around as soon as possible after surgery.
3. Listen to the sound of running water.
4. Avoid bladder irritants such as alcohol, caffeine, and citrus.

What causes no urine output after surgery?

Often a patient will have a diminished urine output after a major operation. This may be the result of fluid and blood loss and the response of the adrenal cortex to stress - there is an increase in aldosterone release (adrenal cortex) and ADH release (posterior pituitary) in the first 24 hours after surgery.

What are the red flags of urinary retention?

Acute urinary retention can be life threatening. If you have any of the other symptoms of urinary retention, such as trouble urinating, frequent urination, or leaking urine, talk with your health care professional about your symptoms and possible treatments. Chronic urinary retention can cause serious health problems.

Which animal can hold their bladder the longest?

An elephant can urinate about 42.3 gallons in one go | Masai Mara | Kenya [OC] TIL: An elephant's bladder volume averages 160L or 42 gallons, but they hold to Hu's Urination Law, which states that mammals larger than 2.2 pounds take an average of 20 seconds to empty their bladders.

How quickly does drinking water turn into urine?

As a result, some individuals drink water and pee more quickly, while others require more time. Healthy individuals will typically absorb water and produce urine in two hours. Therefore, there is no set duration for when water turns into urine; instead, the answer really depends on you.

What happens when urine stays in the bladder too long?

The longer urine stays in your bladder, the more time bacteria have to multiply and cause an infection. UTIs can develop in any part of your urinary system, but they most often occur in the bladder (cystitis) and urethra (urethritis).

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