What Causes Cats to Pee Blood: Understanding Hematuria

Cats are known for their impeccable hygiene and cleanliness, so when you notice blood in your cat’s urine, it can be a cause for concern. Blood in a cat’s urine, known as hematuria, is not a condition itself but rather a symptom of an underlying issue. Hematuria can be distressing for both the cat and their owner, but understanding the potential causes and seeking veterinary attention promptly is crucial. In this article, we will explore some common causes of hematuria in cats and provide answers to frequently asked questions about this condition.

Common Causes of Hematuria in Cats:

1. Urinary Tract Infections (UTIs): Bacterial infections in the bladder or urethra can cause inflammation and lead to blood in the urine.

2. Bladder Stones: The formation of mineral deposits in the bladder can cause irritation, leading to blood in the urine.

3. Feline Lower Urinary Tract Disease (FLUTD): FLUTD encompasses a range of conditions that affect the lower urinary tract, including cystitis and urethral blockage, which can cause hematuria.

4. Trauma: Injuries to the urinary tract, such as accidents or falls, can result in blood in the urine.

5. Feline Idiopathic Cystitis (FIC): An inflammatory condition of the bladder, FIC can cause blood in the urine without the presence of infection or stones.

6. Polyps or Tumors: Benign or malignant growths in the urinary tract can lead to hematuria.

7. Coagulation Disorders: Certain blood clotting disorders can cause blood to appear in the urine.

8. Medications: Some medications, such as certain antibiotics or nonsteroidal anti-inflammatory drugs (NSAIDs), can cause hematuria as a side effect.

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9. Stress: Stress can contribute to the development of urinary tract conditions, including hematuria.

10. Kidney Disease: Certain kidney conditions can result in blood in the urine.

11. Poisoning: Ingesting toxic substances can cause damage to the urinary tract, leading to hematuria.

Frequently Asked Questions (FAQs):

1. Is blood in my cat’s urine an emergency?
Yes, blood in a cat’s urine should be considered an emergency. Contact your veterinarian immediately for guidance and to schedule an appointment.

2. Can stress cause hematuria in cats?
Yes, stress can be a contributing factor to the development of hematuria in cats. Minimizing stressors in your cat’s environment is important for their overall well-being.

3. Can hematuria be a sign of a urinary tract infection?
Yes, urinary tract infections are a common cause of hematuria in cats. Your veterinarian will need to perform tests to confirm the presence of an infection.

4. How is hematuria diagnosed?
Your veterinarian may perform various diagnostic tests, including a physical examination, urinalysis, blood tests, imaging studies, and sometimes a urine culture.

5. Can hematuria be treated at home?
Treatment for hematuria depends on the underlying cause. While some home remedies may help alleviate symptoms temporarily, it is crucial to consult a veterinarian for a proper diagnosis and treatment plan.

6. Can diet affect hematuria in cats?
Diet can play a role in managing certain urinary tract conditions. Your veterinarian may recommend specific dietary changes to prevent recurrence or manage the underlying cause of hematuria.

7. Can female cats get urinary blockages?
Though urinary blockages are more common in male cats, female cats can also experience blockages due to anatomical differences or underlying conditions.

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8. Is hematuria more common in older cats?
Hematuria can occur at any age, but it is more commonly seen in older cats due to the increased likelihood of developing urinary tract issues or underlying medical conditions.

9. Can hematuria resolve on its own?
In some cases, mild hematuria may resolve on its own. However, it is crucial to seek veterinary attention to identify and address the underlying cause.

10. Can cats with hematuria still use the litter box?
Cats with hematuria may experience pain or discomfort while urinating, leading to litter box aversion. It is essential to provide a clean litter box and seek prompt veterinary care to prevent further complications.

11. Can hematuria be prevented?
Prevention of hematuria depends on the underlying cause. Maintaining good hydration, providing a balanced diet, and minimizing stress can help reduce the risk of developing urinary tract issues in cats.


Hematuria in cats is a concerning symptom that should never be ignored. It indicates an underlying issue that requires veterinary attention. By understanding the potential causes and seeking prompt medical care, you can provide your feline companion with the necessary treatment and support to manage or resolve the condition, ensuring their overall health and well-being.