Pet Health

Cat Has Blood In Stool (Why & What To Do)

Discover the common causes of blood in your cat's stool and learn essential steps for care and treatment. Keep your feline friend healthy and happy!
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A concerned cat owner examines their cat’s stool for blood, illustrating symptoms to watch for in feline health.

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Noticing blood in your cat's stool can be alarming and leave you feeling worried and unsure about what to do next. As pet parents, it’s natural to want answers quickly to ensure your furry companion stays healthy and comfortable. Let’s break down what blood in a cat’s stool could mean, what you can do at home, and when it’s time to call a vet for help.

⚠️ What to Watch For

Blood in your cat's stool can appear in different ways, and recognizing the specific symptoms can help determine the underlying cause. Here’s what to keep an eye on:

  • Bright red blood (fresh blood) on or in the stool
  • Dark, tarry stool (indicating digested blood)
  • Diarrhea or loose stools with blood
  • Straining to defecate or signs of discomfort
  • Mucus mixed with blood in the stool
  • Changes in appetite, energy levels, or weight

Take note of any additional symptoms, such as vomiting, lethargy, or a bloated abdomen, as these can provide important clues for your vet.

🔍 Possible Causes

There are several potential reasons why your cat might have blood in their stool. Some are minor and easily treatable, while others may require prompt veterinary care. Common causes include:

  • Dietary indiscretion: Eating something unusual or spoiled can irritate the digestive tract.
  • Food allergies or intolerances: Certain ingredients, like dairy or grains, may trigger inflammation.
  • Parasites: Worms like hookworms, roundworms, or coccidia can cause irritation and bleeding in the intestines.
  • Stress: Changes in your cat’s environment or routine can lead to stress-induced colitis.
  • Infections: Bacterial, viral, or fungal infections may inflame the GI tract.
  • Constipation: Straining to pass hard stools can result in minor tears or bleeding.
  • Inflammatory bowel disease (IBD): Chronic inflammation of the intestines can cause diarrhea with blood.
  • Trauma: Injuries to the rectum or anus can result in visible blood.
  • Serious conditions: Issues like intestinal tumors, ulcers, or clotting disorders may also cause blood in the stool.

Understanding the cause is key to determining the best course of action for treatment.

✅ What You Can Do at Home

If your cat seems otherwise healthy and the blood in their stool is mild or infrequent, there are a few steps you can take at home:

  • Monitor their stool for 24–48 hours to see if the issue resolves on its own.
  • Switch to a bland diet, such as boiled chicken and rice, for a day or two to ease their digestive system.
  • Ensure your cat has access to fresh water to prevent dehydration, especially if diarrhea is present.
  • Check their litter box for signs of constipation or diarrhea.
  • Rule out recent changes to their diet or environment that could have triggered stress or sensitivity.

While minor cases may improve with these steps, it’s important to stay vigilant and act quickly if symptoms persist or worsen.

💡 When to Call a Vet

Some situations require immediate veterinary attention to ensure your cat’s health and safety. Contact your vet promptly if you notice any of the following:

  • Large amounts of blood in the stool
  • Dark, tarry stools (a sign of internal bleeding)
  • Persistent diarrhea lasting more than 48 hours
  • Vomiting, lethargy, or loss of appetite
  • Straining to defecate without producing stool
  • Signs of pain, such as vocalizing or hiding
  • Known exposure to toxins or foreign objects

In these cases, your vet may recommend diagnostic tests, such as fecal exams, bloodwork, or imaging, to identify the cause and start appropriate treatment.

FAQs

Q: Is blood in my cat’s stool always an emergency?
A: Not always. Small amounts of bright red blood may result from minor issues like constipation or dietary changes. However, if the blood persists, is dark and tarry, or is accompanied by other symptoms, it’s important to contact your vet.

Q: Can stress cause blood in my cat’s stool?
A: Yes, stress can lead to colitis, which may cause blood or mucus in the stool. Reducing stressors in your cat’s environment can help prevent this.

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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