Why Is My Dog Peeing Blood? Bloody Urine in Dogs


Potential Causes

  • Urinary tract infections (UTIs)
  • Kidney infections
  • Kidney stones
  • Bladder stones
  • Kidney cancer
  • Bladder cancer
  • Prostate infections
  • Injuries
  • Idiopathic renal hematuria
  • Renal telangiectasia (in Pembroke Welsh Corgis)

Are you concerned because you noticed blood in your dog’s urine? It needs attention, and there are a few things that could be causing it. In this post, we’ll explore the most common causes of blood in dog urine and what you can do to treat them. So, if you’re wondering “why is my dog peeing blood?”, read on to find out.

Upper Urinary Tract and Lower Urinary Tract Problems

There are two main systems in a dog’s body that are responsible for urine production and storage – the upper and lower urinary tract. Problems in either of these systems can cause blood in urine.

The upper tract includes the kidneys and ureters, which are tubes that connect the kidneys to the bladder. The lower tract includes the bladder and urethra, which is the tube that carries urine out of the body.

Problems in the upper urinary tract are more likely to cause kidney failure, while problems in the lower urinary tract are more likely to be related to bladder infections. Why is my dog peeing blood? Let’s find out.

Why Is My Dog Peeing Blood? Urinary Tract Infections (UTIs)

Why is my dog peeing blood? They may have a urinary tract infection (UTI). UTIs are caused by bacteria that enter the urethra and travel to the bladder, where they multiply.

UTIs are more common in female dogs because their urethras are shorter than male dogs’ urethras, making it easier for bacteria to travel to the bladder. Dogs with UTIs may have any or all of the following symptoms:

  • blood in urine;
  • frequent urination;
  • straining to urinate;
  • urinating small amounts;
  • discomfort when urinating.

If your dog is displaying any of these symptoms, take him to the vet as soon as possible. UTIs can be painful and, if left untreated, lead to kidney damage.

Idiopathic Renal Hematuria in Dogs

Another possible cause of blood in urine is idiopathic renal hematuria. This condition is also known as isolated hematuria and can be caused by:

  • infection;
  • tumors;
  • trauma;
  • inflammation.

Idiopathic renal hematuria is most common in young male dogs. If your dog is displaying other symptoms, such as weight loss or appetite changes, he may have a more serious condition, and you should take him to the vet right away.

Renal Telangiectasia

Renal telangiectasia is a condition reported in Pembroke Welsh Corgis that causes the blood vessels in the kidneys to widen. This can cause blood in the urine, as well as other symptoms, including:

  • weight loss;
  • appetite changes;
  • lethargy;
  • vomiting;
  • diarrhea.

Renal telangiectasia is a serious condition that can lead to kidney failure. „Why is my dog peeing blood?” There are more answers to this question, read on!

Kidney Infections

Kidney Infections

A kidney infection, also called pyelonephritis, is a serious condition that can cause blood in urine. Kidney infections are usually caused by bacteria that travel from the bladder to the kidneys. If your pup has it, they’ll have some or all of the following symptoms:

  • blood in urine;
  • fever;
  • loss of appetite;
  • weight loss;
  • vomiting;
  • diarrhea;
  • dehydration.

Editor’s Note ✏️

Kidney infections might be the last thing dog owners think about when seeing bloody urine, but they do happen. They’re usually diagnosed in older or middle-aged dogs, and they can result from an earlier bladder infection that wasn’t completely treated. If your pup has a history of UTIs, don’t be quick to assume they’re suffering from the same thing again. The infection might have gone up or down.

Kidney Stones

Why is my dog peeing blood? They may have kidney stones. These are small, hard deposits that form in the kidneys. They’re usually made of calcium, but can also consist of other substances, such as uric acid. Dogs with kidney stones may have:

  • blood in urine;
  • difficulty peeing;
  • frequent urination in small amounts;
  • discomfort when peeing.

Like the other conditions on our list, kidney stones can be painful and lead to permanent damage. Protect your pup from it by taking them to a clinic ASAP!

Kidney or Bladder Cancer

Kidney cancer is a rare condition that usually affects older dogs and may also cause weight loss, appetite changes, and lethargy. Bloody urine is a telltale symptom, as well as vomiting, abdominal pain, and increased drinking. The earlier your dog receives treatment, the better their chances of recovery.

Bladder Stones

Bladder Stones

Bladder stones, also called urinary calculi, are small, hard deposits that form in the bladder. They’re usually made of calcium, but can also be made of other substances like magnesium or uric acid. The symptoms are similar to those of kidney stones and urinary tract infections. An experienced veterinarian can remove the stones and recommend a special diet to prevent them from coming back.


Why is my dog peeing blood? The answer can even be an injury. Trauma to the urinary system can cause blood in urine. It can be a result of an accident like:

  • being hit by a car;
  • falling from a height;
  • being attacked by another animal.

If your dog has suffered any type of trauma, take them to the vet. They may need surgery or other treatment to repair the damage.

Infectious Disease

Infectious diseases that cause blood in urine are usually caused by viruses or bacteria, and can be passed from one animal to another. Consider if your dog may have:

  • distemper;
  • leptospirosis;
  • Lyme disease;
  • Rocky Mountain spotted fever.

These diseases can be serious and, in some cases, fatal.

Other Possible Causes

Why is my dog peeing blood? Prostate problems and intestinal parasites, such as hookworms or roundworms, can also cause bloody urine. Weight loss, appetite changes, and other symptoms can be signs of a more serious condition that needs to be addressed immediately.

Is It Time to Visit an Emergency Vet?

If your dog is displaying some of the following symptoms, they may be in danger, and you should take them to the vet or an emergency animal hospital immediately:

  • vomiting;
  • diarrhea;
  • dehydration;
  • difficulty breathing;
  • collapsing;
  • seizures;
  • swelling of the abdomen;
  • blood in stool;
  • black, tarry stool;
  • straining to urinate;
  • discomfort when urinating;
  • urinating small amounts.

Veterinary Care: Diagnosis and Treatment

When you take your dog to the vet, they will ask about their medical history and symptoms and will then perform a physical examination. They may also recommend one or more of the following tests:

  • urinalysis (urine analysis);
  • blood test;
  • X-ray (X-radiation);
  • CT scan;
  • MRI;
  • ultrasound.

After the veterinarian has diagnosed the cause of your dog’s bloody urine, he will recommend the appropriate treatment. Treatment may involve medication, surgery, or a change in diet. If your dog has a bladder infection, they’ll be prescribed antibiotics. To treat kidney stones, surgery may be necessary. Cancer can be treated with surgery, chemotherapy, or radiation therapy.

How to Prevent Blood in Your Dog’s Urine

While bloody urine can result from a serious condition, a single case of it can also be caused by something as simple as excitement or vigorous exercise. If your dog is otherwise healthy and has no other symptoms, there’s no need to panic.

How to Prevent Blood in Your Dog's Urine

To help prevent bloody urine, keep your dog well-hydrated and to take him for regular checkups. If your dog is prone to bladder infections, the vet may recommend a special diet or supplements. Talk to them about any concerns you have and follow their recommendations to help keep your dog healthy and happy.

Can Spaying Cause Bloody Urine in Dogs?

Spaying can cause inflammation of the urinary tract, which can lead to blood in urine. If your dog has just been spayed and has bloody urine, take her for a checkup. The vet will recommend tests to rule out other potential causes. If your pup is otherwise healthy, she may just need a little more time to recover.

Other Urinating Problems in Dogs

Why is my dog peeing blood? This can be a sign of a serious problem, but not all urinary issues are cause for concern. For example, your dog may leak urine when he sleeps or when he gets excited. This is called urinary incontinence and is relatively common in dogs.

If you’re concerned about your dog’s urinating habits, talk to your vet. They’ll help you determine whether the problem is serious and will recommend the best course of treatment.

FAQs About Abnormal Urination in Dogs

FAQs About Abnormal Urination in Dogs

Is Blood in Dog Urine an Emergency?

Since it’s impossible to know whether your dog has a serious condition or a minor problem just from this symptom, you should treat every instance of bloody urine as an emergency. As soon as possible, take your dog to the veterinarian so they can identify and treat the problem.

What Can I Give My Dog for Blood in Urine?

Don’t try to treat your dog without a proper diagnosis. But if you’ve already found out that it’s an infection causing the problem, then giving your dog antibiotics (prescribed by your vet) can help. However, certain conditions require other treatments such as surgery or lifestyle changes.

Can I Treat My Dog’s UTI at Home?

If your vet gives you the green light and prescribes medication that you’re comfortable administering yourself, then yes. Supplements with cranberries can also help in addition to normal treatment.

Can Dogs Pee Blood From Stress?

Stress can definitely contribute to urinary issues, but it’s usually not the only cause. More likely, medical conditions such as a UTI, kidney stones, or even cancer can cause blood in the urine. Consult your vet to get an accurate diagnosis.

What Does Kidney Failure Look Like in Dogs?

If your pup has been exhibiting any strange behaviors like an excessive urge to urinate, discolored pee, vomiting, or losing weight and energy unexpectedly – it may be a sign of kidney failure. Unexplained increases in thirst and appetite could also indicate this condition. If you think anything is wrong with your furry friend, don’t hesitate to reach out for professional help!

Archiwum: luty 2023

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