Does my dog have a UTI? Is your dog suddenly straining to peeing, taking extra potty breaks or having accidents in the house? These can all be subtle symptoms of UTI in dogs. While urinary tract infections are common in dogs (and often mild), they can at times escalate quickly and become painful, dangerous and even life-threatening.

Here’s a quick look at understanding what causes UTIs in dogs, what signs to look for, preventative measures, and how to tell when it’s time for emergency veterinary care.

What Is a UTI in dogs?

A urinary tract infection (UTI) happens when bacteria enter the urinary system and begin to multiply. In dogs, infections most often affect the bladder, which is why UTIs are sometimes referred to as bladder infections.

That said, not all urinary infections are limited to the bladder — and that’s where risk increases.

• Lower urinary tract infections involve the bladder and urethra

• More serious infections may spread to the kidneys or cause inflammation and obstruction

Even a “simple” UTI is uncomfortable. When left untreated, it can progress into something much more serious.

Quick vet intervention for a dog's UTI can help prevent further complications. An untreated UTI can be fatal. At VEG ER for Pets, your dog will receive immediate vet attention.

Causes of UTI (urinary tract infection) in dogs

Most UTIs are caused by bacteria, but infections rarely happen in isolation. Often, there’s something else going on that makes it easier for bacteria to take hold.

Common causes and contributing factors of UTI in dogs:

• Bacterial infections entering through the urethra

• Anatomy: Female dogs are more prone due to a shorter urethra

• Hygiene factors: Moisture, debris or skin folds near the urinary opening

• Immune system issues: Dogs with weakened immune defenses

Underlying medical conditions can significantly increase UTI risk, including:

• Bladder stones

• Diabetes

• Tumors or structural abnormalities

If UTIs keep coming back, there’s usually an underlying reason that needs to be addressed.

Types of UTIs in Dogs

Not all urinary problems are created equal. Some are relatively straightforward, while others may be more complex and a higher risk.

Here’s how veterinarians often categorize urinary issues:

• Simple UTIs: Isolated infections in otherwise healthy dogs

• Recurrent UTIs: Multiple infections within a short period

• Complicated UTIs: Similar to recurrent UTIs and sometimes caused by resistant bacterias, making them harder to treat 

Diagnostic testing by your vet is often needed to identify the true cause.

Signs and Symptoms of UTI in Dogs

UTI symptoms don’t always look dramatic at first. In fact, many dogs try to hide discomfort — which is why subtle changes matter.

Common symptoms of UTI in dogs

These are often the first signs pet parents notice:

• Frequent attempts to urinate

• Licking genitals

• Straining or taking longer to pee

• Accidents in the house

• Cloudy, strong-smelling or bloody urine

  
  

Less obvious signs of UTI in dogs

Some dogs show signs that don’t immediately point to a urinary issue:

• Lethargy or low energy

• Decreased appetite

• Restlessness or behavior changes

Emergency warning signs of UTI in dogs

These signs suggest a more serious problem and require immediate care:

• Inability to urinate or only passing drops

• Crying or vocalizing in pain

• Vomiting or fever

• Extreme lethargy, weakness or collapse

In male dogs especially, difficulty urinating is always a red flag.

VEG is open 24/7, including holidays, to help your dog' with high-quality emergency care.

How to prevent UTIs in dogs

Some dogs are simply more prone to urinary issues — but prevention still matters.

• Encourage regular bathroom breaks

• Keep fresh water available

• If being treated for UTI, follow up with vet to confirm infection is fully cleared

• Manage chronic conditions closely

At-home UTI prevention meaures for your dog

While veterinary treatment is essential, there are a few safe steps you can take while monitoring your dog or prepping to seek care.

What you can do for dog's UTI

• Encourage hydration

• Track urination frequency and comfort level

  
  

What not to do for dog's UTI

• Do not rely on home remedies alone

• Never use leftover antibiotics. Antibiotics must ALWAYS be completed; you should never have leftovers. 

• Do not wait if symptoms worsen

Delaying care can allow infection to spread or lead to obstruction. Bring your dog in to your nearest VEG emergency animal hospital, open 24/7.

When Is a dog UTI an emergency?

This is one of the most common questions pet parents ask — and the answer depends on symptoms and timing.

Symptoms to determine if UTI is an emergency

Same-day primary care vet visit recommended

• Mild urinary changes

• Persistent straining

• Blood in urine

• Signs of discomfort

Emergency care Is needed immediately If:

• Your dog cannot urinate at all

• Pain is severe or worsening

• Vomiting, fever or weakness develops

• Symptoms appear suddenly overnight or after hours 

  
  

Urinary obstruction is a true emergency and can become life-threatening quickly.

How our ER vet diagnoses and treats UTIs in dogs

If you suspect your dog has a UTI, our experienced vets will help diagnose and treat your pet right away. Diagnosis often includes:

• Urinalysis

• Urine culture

• Imaging (X-rays or ultrasound) if stones or complications are suspected

Treatment plans vary depending on severity and underlying causes, and follow-up testing is often recommended.

Treating UTIs in dogs with medications and antibiotics 

Antibiotics are commonly used to treat UTIs — but only after identifying the cause. This is especially important for dogs with recurrent infections.

• Urinalysis helps confirm infection and sometimes determines if crystal/stones are present

• Urine cultures determine the correct antibiotic

• Incomplete or incorrect treatment increases resistance risk

Recovery and how long UTI last in dogs

Most dogs start to feel better within a few days of treatment.

• Mild UTIs often resolve in 1–2 weeks (Always finish the medications as directed by your vet, even when symptoms are gone)

• Symptoms should steadily improve

• Recurring or persistent symptoms warrant re-evaluation

UTI in dogs: FAQs

How do you treat a UTI in dogs at home?

Home care alone isn’t enough. UTIs usually require veterinary diagnosis and medication to ensure recovery and prevent a more serious kidney infection. 

Are dog UTIs contagious?

No, UTIs are not contagious to people or other pets. Regardless, a UTI can threaten a dogs life, so it is extremely important to seek emergency vet care for your dog if you suspect a UTI.

How long does a UTI last in dogs?

Most improve within days of treatment but require full medication courses.

Can a UTI be fatal in dogs?

Yes, if left untreated, a urinary tract infection can be life threatening to a dog. Kidney infection and sepsis can occur if dog's UTI is not treated with proper vet attention.

Can a dog’s UTI go away on its own?

Rarely. Delaying treatment can lead to serious complications. Visit your nearest 24-hour dog hospital to obtain a proper care plan and treatment for your dog.

VEG 24-hour vet hospitals are open 24/7 to help your dog

If your dog is showing symptoms of a urinary tract infection, it's imperative to get your pet prompt diagnosis and treatment. UTIs caught early can be treated quickly to help restore your dog's health. Do not wait it out, as a UTI will not go away on its own. Your dog will receive prompt, compassionate care at any VEG ER for Pets animal hospital.