Pet Health

Cat Has Blood In Urine: Why Is My Cat Peeing Blood?

Discover the causes of blood in your cat's urine and learn when to seek veterinary care. Find helpful tips for keeping your feline friend healthy today!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A concerned cat owner examines their cat's litter box, noticing blood in the urine.

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Noticing blood in your cat’s urine can be alarming. You’re not alone in feeling concerned—many pet parents experience this and wonder what it means for their furry companion’s health. While it can indicate a range of underlying issues, the good news is that most conditions causing blood in a cat’s urine are treatable with prompt veterinary care.

⚠️ What to Watch For

When your cat is peeing blood (a condition called hematuria), it’s usually a sign of a problem in the urinary tract. However, other symptoms often accompany this issue. Pay close attention to any of the following:

  • Frequent trips to the litter box
  • Straining or crying while urinating
  • Urinating outside the litter box
  • Small amounts of urine being passed
  • Cloudy or foul-smelling urine
  • Visible signs of discomfort or lethargy
  • Excessive grooming of the genital area

If your cat displays any of these symptoms along with blood in their urine, it’s a clear sign that something isn’t right and requires attention.

🔍 Possible Causes

There are several reasons why your cat might have blood in their urine. Here are some of the most common causes:

  • Urinary Tract Infections (UTIs): Bacterial infections in the bladder or urethra can cause inflammation, leading to blood in the urine. UTIs are more common in older cats.
  • Feline Lower Urinary Tract Disease (FLUTD): This umbrella term includes a variety of conditions affecting the bladder and urethra, such as bladder stones, crystals, or interstitial cystitis.
  • Bladder Stones or Crystals: Mineral deposits in the bladder can irritate the urinary tract lining, leading to bleeding. Stones may also block urine flow, which is a medical emergency.
  • Stress-Induced Cystitis: Stress can trigger inflammation in a cat’s bladder, particularly in indoor cats. This condition, called idiopathic cystitis, often leads to blood in the urine.
  • Trauma or Injury: Physical injuries to the lower abdomen or urinary tract can cause internal bleeding.
  • Urinary Blockage (Urethral Obstruction): More common in male cats, a blockage in the urethra can prevent urination and cause blood to appear in the urine. This is a life-threatening emergency.
  • Kidney Disease or Kidney Stones: Kidney problems can lead to hematuria, along with other symptoms like increased thirst and weight loss.
  • Cancer: Tumors in the bladder or urinary tract, while less common, can also lead to blood in the urine.

According to VCA Animal Hospitals, conditions like FLUTD are among the most frequently diagnosed causes of blood in a cat’s urine (source).

✅ What You Can Do at Home

While it’s important to consult a vet for a proper diagnosis, there are a few steps you can take at home to help your cat feel more comfortable in the meantime:

  • Provide plenty of fresh water to encourage hydration, which can help flush the urinary system.
  • Ensure your cat has easy access to a clean litter box in a quiet, stress-free area.
  • Observe your cat’s behavior closely, noting any additional symptoms to share with your vet.
  • If your cat is on a specific diet, avoid introducing any new foods until you’ve consulted with a vet.

While these steps may offer temporary relief, they’re not a substitute for veterinary care. Blood in the urine often requires medical treatment to address the root cause.

💡 When to Call a Vet

It’s always better to err on the side of caution when it comes to your cat’s health. You should contact a veterinarian immediately if:

  • Your cat cannot urinate, or you suspect a urinary blockage
  • There is a large amount of blood in the urine
  • Your cat appears lethargic, refuses to eat, or is in visible pain
  • The symptoms persist or worsen after 24 hours

Urinary blockages, especially in male cats, are life-threatening emergencies that require immediate intervention. If you’re unsure about your cat’s symptoms, an online vet consultation can provide quick guidance on the next steps.

FAQs

Q: Can stress cause my cat to pee blood?
A: Yes, stress is a common trigger for idiopathic cystitis, a condition that causes bladder inflammation and blood in the urine. Reducing stress at home can help, but veterinary care is essential for proper treatment.

Q: Is blood in my cat’s urine always an emergency?
A: Not always, but it’s a serious symptom that should be addressed promptly. Some causes, like urinary blockages, are life-threatening and require immediate medical attention.

Q: How can I help prevent urinary issues in my cat?
A: Encourage hydration by offering fresh water and wet food, maintain a stress-free environment, and ensure your cat’s diet supports urinary health. Regular veterinary check-ups can also help catch issues early.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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