We’ve all experienced it—your dog jumps up for a kiss, or your cat snuggles close, and suddenly, you’re hit with an overpowering wave of bad breath. While many pet owners brush off foul breath as "normal," persistent bad breath can actually be a warning sign of underlying health issues.

At Home Veterinary Services hears from pet owners concerned about their furry friend’s halitosis (chronic bad breath). While occasional bad breath after a meal is nothing to worry about, ongoing odor can signal dental disease, infections, or even internal health problems. In this blog, we will uncover the possible causes of bad breath in pets, when to be concerned, and how to keep their breath fresh and healthy.

What Causes Bad Breath in Pets?

Bad breath isn’t just unpleasant—it’s often a symptom of a bigger issue. Here are some of the most common causes of foul-smelling breath in pets:

Plaque and Tartar Buildup

The most common culprit of bad breath in pets is plaque and tartar accumulation. When food particles and bacteria mix with saliva, they form a sticky substance called plaque, which hardens into tartar over time. This leads to gum inflammation (gingivitis), tooth decay, and painful infections.

If left untreated, tartar buildup can progress to periodontal disease, which affects nearly 70-80% of dogs and cats by the age of three.

Gum Disease & Oral Infections

If your pet’s bad breath is accompanied by red, swollen gums, excessive drooling, or difficulty eating, they may have gum disease or a dental infection. Bacteria trapped under the gumline can cause painful abscesses, leading to serious health issues if the infection spreads.

Unhealthy Diet & Eating Habits

Certain foods or habits can contribute to bad breath, including:

• Low-quality pet food that doesn’t support dental health
• Chewing on non-food items, like garbage, old bones, or even feces
• Digestive issues

Underlying Health Problems

Bad breath isn’t always caused by dental issues. Chronic foul breath can sometimes signal more serious conditions, such as kidney disease, diabetes, or liver disease.

If your pet’s breath suddenly worsens or has an unusual odor, it’s important to get them checked by a veterinarian.

When to Be Concerned About Bad Breath

Occasional bad breath (like after eating strong-smelling food) is normal. However, if your pet’s breath is consistently foul or getting worse, it’s time to take action.

Signs that bad breath might indicate a serious issue:

• Persistent, strong odor that doesn’t go away
• Excessive drooling or difficulty chewing
• Red, swollen, or bleeding gums
• Loose or missing teeth
• Decreased appetite or weight loss

If you notice any of these symptoms, it’s best to schedule an at-home dental exam with At Home Veterinary Services as soon as possible.

How to Keep Your Pet’s Breath Fresh & Healthy

The good news? You can take simple steps to prevent bad breath and promote better oral health for your pet!

Brush Their Teeth Regularly

Brushing your pet’s teeth is the most effective way to prevent plaque buildup and bad breath. Use a pet-safe toothbrush and toothpaste with flavors like poultry or peanut butter to make it enjoyable. Aim for at least 2-3 times per week, or daily if possible.

Offer Dental Chews & Toys

Chewing is a natural way for pets to clean their teeth and reduce plaque buildup. Provide VOHC-approved (Veterinary Oral Health Council) dental chews, treats, or toys designed to promote oral hygiene.

Feed a High-Quality Diet

Diet plays a crucial role in your pet’s oral health. Choose pet food formulated to support dental hygiene, and avoid feeding too many soft or sticky treats that can encourage plaque buildup.

Schedule Regular Dental Cleanings

Even with great at-home care, pets still need professional dental cleanings to remove tartar and prevent serious oral diseases. If we believe that your companion needs a pet dental cleaning or tooth extractions after completing an at-home dental exam, At Home Veterinary Services can refer you to a trusted clinic. 

Schedule an At-Home Pet Dental Checkup Today!

If your pet’s bad breath is persistent or getting worse, don’t ignore it—it could be a sign of dental disease or a hidden health issue. At Home Veterinary Services offers in-home dental exams for the Seattle area to make sure your cat or dog’s teeth stay healthy.

Call us at (206) 225-0463 to schedule an appointment.