DOGS · Real veterinary cases
Dog pee blood
A pet owner asked our search engine this exact question. We pulled 8 matching peer-reviewed veterinary case reports from our library of published veterinary papers. Here's what they say — in plain English, with citations.
Plain-English synthesis
## What these cases have in common Across these cases, many dogs presented with blood in their urine, known as hematuria. The underlying causes varied but included issues like urinary tract lesions, idiopathic renal hematuria, and urinary stones. ## Treatments that worked - **Cystoscopy and surgical resection**: In multiple cases (3 of 8), cystoscopy was used to visualize and surgically remove bleeding lesions in the urinary tract. - **Povidone iodine sclerotherapy**: This treatment was effective in 2 cases for managing idiopathic renal hematuria by reducing bleeding in the urinary system. - **Exploratory surgery**: In 2 cases, surgical procedures helped identify and resolve the causes of hematuria, including kidney removal for severe cases. - **Castration**: In cases related to prostatic enlargement, castration was successful in stopping the bleeding (1 of 1 case). ## Outcomes The treatments mentioned were generally successful, with most cases reporting positive outcomes after intervention. ## Next step Bring these specific cases to your vet to discuss whether any sound like your pet's situation.
Conditions worth asking your vet about
These are the specific named diagnoses a vet would typically investigate for this presentation — not categories like “metabolic disorder”, but the actual conditions you can mention by name.
Urinary tract infection (UTI)
A bacterial infection in the urinary tract can cause blood in the urine, frequent urination, and discomfort. It's common in dogs and often diagnosed with a urinalysis and urine culture.
Bladder stones (urolithiasis)
Mineral deposits in the bladder can irritate the lining and cause bleeding. Dogs may also strain to urinate or have frequent urination. An X-ray or ultrasound can confirm their presence.
Idiopathic cystitis
Inflammation of the bladder without a clear cause can lead to blood in the urine. It's more common in cats but can occur in dogs, often diagnosed by ruling out other causes.
Prostatic disease
In male dogs, conditions like prostatitis or prostatic hyperplasia can cause blood in the urine. Symptoms may include straining to urinate and discomfort. A rectal exam and ultrasound can help diagnose these conditions.
Kidney infection (pyelonephritis)
An infection of the kidneys can cause blood in the urine, along with signs of systemic illness like fever and lethargy. Diagnosis typically involves urinalysis, bloodwork, and imaging.
Bladder cancer (transitional cell carcinoma)
A tumor in the bladder can cause blood in the urine and difficulty urinating. It's more common in older dogs and diagnosed via ultrasound and biopsy.
Easily confused with: Coagulopathy · Trauma to urinary tract · Renal calculi · Ectopic ureter
Real peer-reviewed cases
Each link below opens the full PetCaseFinder write-up of a published case report. Bring any of these to your next vet visit — they're the kind of citation a vet will recognise.
#1 match
Use of cystoscopy or cystourethroscopy in treating benign macroscopic hematuria caused by lower urinary tract hemorrhage in three dogs.Journal of the American Veterinary Medical Association · 2019 · United States
Three dogs, a 5-year-old Boston Terrier, an 8-year-old Boxer, and a 10.5-year-old Pembroke Welsh Corgi, were seen because they were all experiencing severe blood in their urine. They also had low red blood cell counts and blood clots in their bladders, but tests showed no issues with their blood clotting. A special procedure called cystourethroscopy allowed the vets to find bleeding spots in the bladders of two dogs and in the urethra of one dog. The Boston Terrier had the bleeding area surgically removed, and tests showed it was a type of blood vessel abnormality. The other two dogs had the bleeding spots treated with a laser, and after follow-ups of up to seven years, none of the dogs had any further issues with blood in their urine.
Read the full case →#2 match
Evaluation of dogs with macroscopic haematuria: a retrospective study of 162 cases (2003-2010).New Zealand veterinary journal · 2017 · United States
This study looked at 162 dogs that had noticeable blood in their urine, a condition known as macroscopic hematuria. The dogs were treated at a clinic in Greece between 2003 and 2010. Most of the dogs were middle-aged, and many had mild to moderate bleeding that was constant and started suddenly. The most common reasons for the blood in their urine were urinary tract infections, bladder stones, prostate issues, and urinary tumors. The findings suggest that a dog's age, sex, and size, along with the details of their symptoms, can help veterinarians figure out what might be causing the problem.
Read the full case →#3 match
Povidone iodine sclerotherapy for treatment of idiopathic renal hematuria in two dogs.Journal of the American Veterinary Medical Association · 2017 · United States
Two dogs, a 6-year-old spayed female Great Pyrenees and a 2-year-old spayed female German Shepherd, were seen for serious blood in their urine that had lasted for 5 and 2 months, respectively. Tests showed that their blood clotting times were normal, and there were no signs of bacterial infection in their urine. Both dogs were diagnosed with idiopathic renal hematuria, which means the cause of the blood was unknown. They were treated with a procedure that involved using a special solution to help stop the bleeding and placing a stent to keep the ureter open. Both dogs did well after the treatment, with the blood in their urine stopping within 12 hours, although one dog still had a small number of red blood cells in her urine after a few months, while the other had a higher count but continued to improve. Overall, the treatment appeared to work effectively for both dogs.
Read the full case →#4 match
Diagnostic approach to hematuria in dogs and cats.The Veterinary clinics of North America. Small animal practice · 2004 · United States
When dogs and cats have blood in their urine, it usually means there is a problem in their urinary or genital systems. If the bleeding continues, it's important to find out where it's coming from and why, so the right treatment can be given. A veterinarian will often start by asking about your pet's history and doing a physical exam, which can help pinpoint whether the issue is in the upper or lower urinary tract or in the reproductive organs. They may also recommend tests like checking the urine, taking X-rays or ultrasounds, and possibly looking at tissue samples to get more information. If these tests don't find the cause, the vet might suggest surgery to explore further, especially if they suspect a condition called idiopathic renal hematuria, where the cause is unknown.
Read the full case →#5 match
Recurrent urethral obstruction secondary to idiopathic renal hematuria in a puppy.Journal of the American Animal Hospital Association · 1998 · United States
A seven-month-old neutered male Catahoula leopard dog mix was brought in because he kept having trouble urinating and sometimes had blood in his urine. After surgery to look inside his abdomen and a procedure to open his bladder, the vets found that he had bleeding from his left kidney, which was causing the blockage. They removed the left kidney, and after that, the bleeding stopped. This case is notable because while bleeding from the kidneys has been seen before, it was unusual for it to cause such a severe blockage in this puppy. The treatment was successful, and the puppy's symptoms resolved.
Read the full case →
Your pet's case is probably already published.
PetCaseFinder reads thousands of peer-reviewed veterinary case reports and translates the relevant ones into plain English. Type your pet's exact symptoms and we'll surface the published cases that match — with citations you can bring to your vet.
Run a personalised search →Frequently asked questions
What does dog pee blood usually mean in dogs?
Published veterinary case reports most often link this presentation to: Urinary tract infection (UTI), Bladder stones (urolithiasis), Idiopathic cystitis. Your vet may also rule out other causes depending on age, breed, and history — this page is a research aid, not a diagnosis.
How many real cases did PetCaseFinder find?
We surfaced 8 peer-reviewed case reports from our library of published veterinary case reports. The top matches are listed above with full citations.
Is this veterinary advice?
No. PetCaseFinder surfaces published veterinary research so you can have a better-informed conversation with your own veterinarian. Always confirm any diagnosis or treatment with a licensed vet who can examine your pet.