It’s normal for dogs to urinate several times a day—but if your dog is peeing excessively, it could signal an underlying health concern. Frequent urination can point to issues ranging from urinary tract infections to hormonal imbalances.
We outline the common causes of dog peeing excessively, what you can do at home, and when to seek veterinary help.
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Dog Peeing Excessively — Why It Happens
Excessive urination in dogs can result from urinary tract infections, diabetes, kidney disease, hormonal changes, or increased water intake. While some causes are minor and treatable, others may be signs of more serious medical problems. Paying attention to frequency, volume, and any additional symptoms is crucial.
Common Causes of Dog Peeing Excessively
Urinary Tract Infection (UTI)
UTIs are one of the most common causes of frequent urination, especially in female dogs.
Signs include straining, small frequent urinations, accidents in the house, and sometimes blood in the urine.
UTIs require antibiotics prescribed by a veterinarian to clear the infection.
Diabetes Mellitus
Excess glucose in the blood causes dogs with diabetes to drink and urinate excessively.
Look for increased thirst, weight loss, and appetite changes.
Blood and urine tests are needed to confirm diagnosis, and treatment involves insulin therapy and dietary management.
Kidney Disease
Kidney dysfunction prevents proper urine concentration, leading to more frequent urination and thirst.
Other symptoms include vomiting, weight loss, and bad breath.
Early diagnosis and treatment can help manage chronic kidney disease and improve quality of life.
Cushing’s Disease
Cushing’s causes the overproduction of cortisol, leading to increased thirst and urination.
Dogs may also gain weight, have a pot-bellied appearance, and experience hair loss.
Diagnosis involves blood tests and imaging, and treatment may include medication or surgery.
Increased Water Intake
Sometimes, the root cause of excessive urination is simply drinking more water—especially in hot weather, after exercise, or due to diet.
However, excessive drinking without explanation can indicate an underlying medical issue.
Monitoring your dog’s water intake can help your vet assess what’s normal or concerning.
Medications
Certain medications—such as corticosteroids or diuretics—can cause increased urination as a side effect.
If your dog recently started new medication and is peeing more, speak with your vet about whether it’s expected or concerning.
What to Do If Your Dog Is Peeing Excessively
Keep a log of how often and how much your dog is peeing each day.
Monitor water intake and note any changes in appetite, weight, or energy levels.
Check for signs of discomfort while urinating—straining, whining, or blood in urine.
Limit access to water only if directed by your veterinarian—never restrict hydration without guidance.
Bring a fresh urine sample to your vet for testing if you suspect a problem.
When to Call or Visit Your Vet
See your vet promptly if your dog:
Starts urinating more frequently or in large volumes
Has accidents in the house despite being house-trained
Seems excessively thirsty or suddenly drinks more
Has blood in urine, straining, or signs of pain
Shows signs of lethargy, vomiting, or appetite loss
Your vet may run bloodwork, urinalysis, and imaging tests to diagnose the issue and start appropriate treatment.
Related
Read more: Dog Drinking Water Excessively (When increased thirst means something more)
Read more: Dog Licking Paws Excessively (What it means)
Key Takeaway
Excessive urination in dogs can range from mild infections to chronic diseases—and shouldn’t be ignored.
Track your dog’s bathroom habits and seek veterinary advice if the frequency changes significantly. Early detection and treatment are key to keeping your dog healthy and hydrated.