Pet Health

My Cat Has Bad Breath: Causes And Treatment Options

Is your cat's breath less than fresh? Discover common causes of bad breath in cats and explore effective treatment options to keep your furry friend healthy and happy.
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
A veterinarian examining a cat's mouth to diagnose bad breath causes and recommend treatment options.

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Does your cat greet you with an affectionate meow but leave you holding your breath because of theirs? Bad breath, or halitosis, in cats is a common issue that many pet owners encounter. While it might seem like a minor inconvenience, persistent bad breath can sometimes signal underlying health problems. Let’s explore the possible causes and what you can do to help your feline friend.

⚠️ What to Watch For

Bad breath in cats is often accompanied by other symptoms that can give you clues about its root cause. Pay attention to these signs:

  • Drooling or excessive saliva
  • Difficulty chewing or eating
  • Red, swollen, or bleeding gums
  • Discolored teeth or visible tartar buildup
  • Pawing at the mouth or face
  • Weight loss or decreased appetite

If you notice these symptoms along with bad breath, it’s time to investigate further. While some cases are harmless, others may require veterinary attention.

🔍 Possible Causes

There are several reasons why your cat may have bad breath, ranging from simple dietary issues to serious medical conditions. Here are the most common causes:

  • Dental disease: Gum disease (gingivitis) or advanced periodontal disease is the leading cause of bad breath in cats. Plaque and tartar buildup harbor bacteria, leading to infection and odor.
  • Dietary factors: Eating smelly foods or scavenging spoiled scraps can temporarily cause bad breath.
  • Oral infections or injuries: Cuts, abscesses, or ulcers in the mouth can create an unpleasant smell.
  • Kidney disease: Cats with kidney issues often have breath that smells like ammonia due to the buildup of waste products in the bloodstream.
  • Diabetes: A fruity or sweet-smelling breath can be a sign of diabetes, particularly if accompanied by increased thirst and urination.
  • Liver disease: Liver problems can cause a foul odor, often paired with yellowing of the gums or eyes.
  • Foreign objects: Sometimes, cats get small objects like string or food lodged in their teeth, which can decay and smell over time.

Identifying the cause is crucial for providing the right treatment. A vet can help determine what’s behind your cat’s bad breath through a physical exam and diagnostic tests.

✅ What You Can Do at Home

For mild cases of bad breath or as part of preventive care, there are steps you can take to improve your cat’s oral health at home:

  • Brush your cat’s teeth: Use a cat-specific toothbrush and toothpaste (never human toothpaste). Gradually introduce brushing to make it a positive experience.
  • Provide dental treats or chews: Many products are designed to reduce plaque and freshen breath while being safe and enjoyable for cats.
  • Switch to a dental diet: Some prescription cat foods are formulated to promote oral health by reducing tartar buildup.
  • Ensure fresh water is always available: Proper hydration supports overall health and reduces the risk of oral issues.

Consistency is key when it comes to improving your cat’s oral hygiene. However, if bad breath persists despite these efforts, professional care may be necessary.

💡 When to Call a Vet

Sometimes, bad breath in cats is a symptom of a more serious condition that requires veterinary intervention. Contact your vet if:

  • Your cat’s bad breath is severe or persistent.
  • They show signs of pain, such as difficulty eating or pawing at their mouth.
  • There is noticeable swelling, bleeding, or pus in the mouth.
  • Other symptoms are present, such as weight loss, vomiting, or changes in behavior.

A vet may recommend a professional dental cleaning, bloodwork, or imaging to diagnose and treat the issue. Early detection can prevent more significant health problems down the road.

FAQs

Q: Can I use human toothpaste to brush my cat’s teeth?
A: No, human toothpaste contains ingredients that are toxic to cats. Always use toothpaste specifically designed for pets.

Q: How often should I brush my cat’s teeth?
A: Ideally, aim for daily brushing. If that’s not feasible, even a few times a week can make a significant difference.

Q: Is bad breath in cats normal?
A: While mild odor is common, persistent or strong-smelling breath is usually a sign of an underlying issue that needs attention.

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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