Is Drooling Ever Normal?

Yes.

Some breeds naturally produce more saliva or allow it to escape because of their facial structure.

These include breeds such as:

• Saint Bernard

• Bloodhound

• Mastiff

• Boxer

• Bulldog

If your dog's drooling suddenly increases compared with their normal amount, it deserves investigation regardless of breed.

Dental Disease Is One of the Most Common Causes

Pain inside the mouth stimulates saliva production.

Common dental problems include:

• Periodontal disease

• Loose teeth

• Tooth root abscesses

• Broken teeth

• Severe gingivitis

Many dogs with dental disease also have:

• Bad breath

• Difficulty chewing

• Bleeding gums

• Pawing at the mouth

• Reluctance to eat hard food

Professional dental treatment often resolves both the pain and the excessive drooling.

Something Stuck in the Mouth

Dogs explore the world with their mouths, making foreign objects a common cause of sudden drooling.

Examples include:

• Sticks

• Grass seeds

• Bone fragments

• Pieces of toys

• Fish hooks

• String

Dogs with a foreign object may paw at their mouth, gag or repeatedly try to swallow.

Nausea

Not all drooling starts in the mouth.

Dogs often drool when they feel nauseous.

Possible causes include:

• Gastroenteritis

• Motion sickness

• Pancreatitis

• Liver disease

• Kidney disease

• Certain medications

Many dogs drool shortly before vomiting.

Poisoning and Toxic Plants

Some toxins irritate the mouth or cause nausea, leading to excessive salivation.

Examples include:

• Cane toads

• Household chemicals

• Certain plants

• Human medications

• Cleaning products

If poisoning is suspected, treat it as an emergency.

Heat Stress

Dogs may drool heavily when overheating.

Other warning signs include:

• Excessive panting

• Bright red gums

• Weakness

• Collapse

Heatstroke is a life-threatening emergency requiring immediate veterinary care.

Oral Tumours

Tumours affecting the gums, tongue or jaw can increase saliva production.

Other signs may include:

• Bad breath

• Bleeding

• Facial swelling

• Difficulty eating

• Weight loss

Early diagnosis provides the best opportunity for treatment.

A Real Clinical Pearl: When Drooling Is the Only Sign

One thing many owners don't realise is that some dogs with significant dental pain show no obvious signs except increased drooling.

In practice, it's not unusual to examine a dog that is:

• Still eating normally

• Still playing

• Has no visible swelling

Yet dental X-rays reveal:

• A tooth root abscess

• Severe bone loss beneath the gums

• A fractured tooth root

• Advanced periodontal disease

This is why persistent drooling should never be dismissed simply because your dog otherwise seems well.

What Will My Veterinarian Look For?

Your veterinarian will examine:

• Teeth

• Gums

• Tongue

• Roof of the mouth

• Throat

• Jaw movement

• Facial symmetry

Depending on the findings, additional tests may include:

• Dental X-rays

• Blood tests

• Imaging

• Sedated oral examination

When Should I Seek Immediate Veterinary Care?

Seek urgent veterinary attention if drooling occurs together with:

• Difficulty breathing

• Collapse

• Repeated vomiting

• Suspected poisoning

• Facial swelling

• Bleeding from the mouth

• Inability to swallow

• Severe lethargy

These signs may indicate a medical emergency.

Can Excessive Drooling Be Prevented?

Some causes cannot be prevented, but you can reduce the risk by:

• Maintaining good dental care.

• Avoiding hard chew objects that can fracture teeth.

• Keeping toxic substances out of reach.

• Preventing access to dangerous plants and chemicals.

• Scheduling regular veterinary dental examinations.

Frequently Asked Questions

My dog suddenly started drooling. Should I be worried?

Sudden drooling is more concerning than lifelong drooling and should be investigated, especially if accompanied by other signs of illness.

Can bad teeth cause drooling?

Yes. Dental disease is one of the most common causes of increased saliva production in dogs.

Why is my dog drooling but still eating?

Dogs often continue eating despite significant dental pain. Persistent drooling may still indicate an underlying problem that requires treatment.

Can nausea make dogs drool?

Yes. Many dogs drool before vomiting or when they feel nauseous.

Does my dog need dental X-rays?

If dental disease is suspected, dental X-rays are often recommended because many painful conditions are hidden beneath the gumline.

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Key Takeaways

• A sudden increase in drooling is not normal.

• Dental disease is one of the most common causes.

• Nausea, foreign objects, toxins and oral tumours should also be considered.

• Persistent drooling deserves a veterinary examination, even if your dog still seems happy and is eating.

• Dental X-rays can identify painful problems that are invisible during a routine oral examination.

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Book Your Dog's Dental Assessment

 

If your dog has bad breath, yellow teeth or signs of dental disease, don't wait until the problem becomes painful.

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Early treatment is often simpler, more affordable and more comfortable for your dog.

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Contact Fortitude Valley Vet today to arrange a dental assessment and learn why so many Brisbane dog owners trust us for affordable, comprehensive dental care.

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Fortitude Valley Vet proudly cares for dogs from:

• Fortitude Valley

• Newstead

• Teneriffe

• New Farm

• Bowen Hills

• Spring Hill

• Herston

• Kelvin Grove

• Paddington

• Red Hill

• Hamilton

• Windsor

• Albion

• Ashgrove

• Petrie Terrace

 

Many of our clients choose us because they want transparent pricing, modern dental equipment and compassionate veterinary care close to Brisbane's inner city.

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Reviewed by Dr Nic Cher, BVMS
Principal Veterinarian | Fortitude Valley Vet

Dr Nic Cher is a Brisbane veterinarian with over 15 years of experience caring for dogs and cats. He has a special interest in preventive healthcare, pet dentistry, pet longevity and helping owners make informed, evidence-based decisions to keep their pets healthier for longer.

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