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Why Is My Cat Drooling Thick Saliva? 12 Vet-Reviewed Reasons & Treatment

Written by: Christian Adams

Last Updated on January 23, 2024 by Catster Editorial Team

drooling cat lying on doorstep

Why Is My Cat Drooling Thick Saliva? 12 Vet-Reviewed Reasons & Treatment

VET APPROVED

Dr. Athena Gaffud Photo

REVIEWED & FACT-CHECKED BY

Dr. Athena Gaffud

DVM (Veterinarian)

The information is current and up-to-date in accordance with the latest veterinarian research.

Learn more »

Cats are fascinating creatures, often leaving us in awe with their peculiar habits and quirky behaviors. However, as a cat owner, you might be alarmed to see thick saliva dripping from your feline’s mouth, making you wonder if it’s a cause for concern or just another quirk to add to the list. In this article, we delve deep into the topic and provide you with 12 possible reasons behind your cat’s drooling, along with helpful tips on addressing the issue and ensuring your cat’s well-being.

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The 12 Reasons Your Cat May Drool Thick Saliva

1. Dental Problems

Dental issues, such as gingivitis, periodontal disease, or tooth decay, can cause thick saliva and drooling in cats. These problems can result from a lack of proper oral hygiene, genetics, or other underlying health conditions.

To help prevent dental problems, ensure that your cat receives regular dental checkups and cleanings with your veterinarian. Additionally, practice good oral hygiene at home by brushing your cat’s teeth regularly using a cat-specific toothbrush and toothpaste.

However, if you notice any signs of discomfort, bleeding, foul breath, or difficulty eating, consult your vet immediately. They may recommend treatment options based on the specific dental issue, which could include:

  • Dental cleanings: Professional dental cleanings under anesthesia can help remove plaque and tartar buildup, addressing early-stage dental problems before they progress.
  • Tooth extractions: In cases of severe tooth decay or advanced periodontal disease, your vet may recommend extracting the affected teeth to alleviate pain and prevent further complications.
  • Prescription medication: Your vet may prescribe antibiotics, anti-inflammatory drugs, or pain relief medications to treat infections, reduce inflammation, and manage pain associated with dental problems.

2. Foreign Objects

veterinarian checks teeth of the maine coon cat
Image Credit: Ermolaev Alexander, Shutterstock

Cats are curious creatures, and sometimes they may accidentally ingest a foreign object, like a piece of string, a small toy, or even a bone fragment, which can become lodged in their mouth, throat, or stomach. This can cause excessive drooling, gagging, and discomfort.

If you suspect your cat has ingested a foreign object, seek veterinary assistance promptly. Your vet may perform a physical examination, X-ray, or endoscopy to diagnose the problem and determine the location of the object.

Depending on the severity and nature of the issue, your vet may recommend appropriate treatment, such as:

  • Manual removal of the object: If the object is visible and easily accessible, your vet may attempt to remove it using forceps or other specialized tools.
  • Endoscopic removal: If the object is lodged farther down the throat or in the esophagus, your vet may use an endoscope to retrieve it without resorting to surgery.
  • Surgical intervention: In severe cases where the object cannot be removed using less invasive methods, surgery may be necessary to remove the foreign body and repair any damage caused by the obstruction.
  • Medication: Your vet may prescribe medications to manage pain, reduce inflammation, or treat any secondary infections resulting from the foreign object.

Always monitor your cat’s behavior and environment closely to minimize the risk of foreign object ingestion, and take prompt action if you suspect a problem.


3. Oral Injuries

Injuries to the mouth, such as cuts, burns, or ulcers, can lead to thick saliva and drooling in cats. These injuries can result from various causes, including chewing on sharp objects, exposure to hot surfaces, or even rough play with other pets. Keep an eye out for any signs of injury, such as reluctance to eat, pawing at the face, or visible wounds in the mouth.

If you suspect a problem, consult your vet promptly. They may recommend treatments based on the type and severity of the injury, which could include:

  • Pain relief: Over-the-counter or prescription pain relievers may be recommended to help alleviate discomfort and reduce inflammation.
  • Antibiotics: If there is a risk of infection or if the injury is already infected, your vet may prescribe antibiotics to treat the infection and prevent complications.
  • Wound care: Your vet may provide instructions on cleaning and caring for the wound to promote healing. This may include using antiseptic rinses or applying topical ointments.
  • Soft diet: Temporarily feeding your cat a soft, easily chewable diet can help minimize irritation and discomfort while the injury heals.

4. Poisoning

IV fluid in tabby cat
Image Credit: wimala namket, Shutterstock

Many substances toxic to cats can cause excessive drooling, such as certain houseplants (e.g., dieffenbachias or azaleas), insecticides, rodenticides, or cleaning products. Keep these items out of your cat’s reach and familiarize yourself with common hazards in your home.

If you suspect poisoning, contact your vet or an emergency animal poison control center immediately. Depending on the toxin involved, your vet may recommend treatments such as:

  • Administering activated charcoal: This can help absorb the toxin and prevent further absorption into the bloodstream.
  • Inducing vomiting: In some cases, inducing vomiting may be recommended to help expel the toxin from your cat’s system.
  • Providing supportive care: Intravenous fluids, oxygen therapy, or medication to manage signs may be necessary to help your cat recover.

5. Nausea

Just like humans, cats can experience nausea, which may result in drooling. This could be due to gastrointestinal issues (e.g., gastritis or inflammatory bowel disease), motion sickness, side effects from medications, or other underlying health conditions like kidney or liver disease.

Monitor your cat’s behavior, and consult your vet if the problem persists. Based on their assessment, they may recommend:

  • Dietary changes: Switching to a bland, easily digestible diet or feeding smaller, more frequent meals may help reduce nausea.
  • Anti-nausea medication: Your vet may prescribe medications to help alleviate nausea and vomiting.
  • Further diagnostic tests: If the cause of nausea is unclear, your vet may recommend additional tests, such as blood work, X-rays, or ultrasound, to determine the underlying issue and develop an appropriate treatment plan.

6. Upper Respiratory Infections

cat drooling
Image Credit: Elisa Putti, Shutterstock

Cats suffering from upper respiratory infections (URIs) may experience thick saliva and drooling due to congestion and irritation in their nasal passages. Common causes of URIs in cats include feline herpesvirus, feline calicivirus, and bacterial infections like Chlamydophila felis or Bordetella bronchiseptica. If you notice signs like sneezing, coughing, discharge from the eyes or nose, lethargy, or loss of appetite, seek veterinary care as soon as possible.

Your vet may recommend treatment options based on the specific cause of the infection. These treatments may include:

  • Antibiotics: If a bacterial infection is suspected, your vet may prescribe antibiotics to help eliminate the bacteria and resolve the infection.
  • Antiviral supplements: Supplements with antiviral properties may be recommended to help manage the signs and speed up the cat’s recovery.
  • Supportive care: Ensuring that your cat stays well-hydrated, providing a comfortable and warm environment, and using a humidifier to help relieve congestion can all contribute to a more comfortable recovery process.
  • Sign management: Over-the-counter saline drops or prescription medications may be recommended to help alleviate nasal congestion and discomfort.

7. Stress and Anxiety

Cats experiencing stress or anxiety may drool as a coping mechanism. To help reduce stress levels and create a calm, safe space for your cat, consider the following strategies:

  • Comfortable hiding spots: Provide cozy, quiet places for your cat to retreat when they feel stressed or overwhelmed.
  • Regular playtime: Engaging your cat in interactive play sessions can help reduce stress and provide mental stimulation.
  • Calming pheromone diffusers: Products like Feliway mimic natural feline facial pheromones, which can help create a calming environment and reduce stress.
  • Consistent routine: Maintaining a consistent daily routine for feeding, playtime, and grooming can help your cat feel more secure and relaxed.
  • Minimizing environmental stressors: Identify potential stressors in your cat’s environment, such as loud noises or other pets, and work on minimizing their impact.

8. Heatstroke

cat drooling
Image By: Ling_Chen, Shutterstock

Heatstroke can cause excessive drooling and thick saliva in cats, as their bodies struggle to regulate temperature during hot weather. To prevent heatstroke, take the following precautions:

  • Access to cool, shaded areas: Ensure that your cat has plenty of places to escape the heat, both indoors and outdoors.
  • Fresh water: Provide your cat with access to clean, fresh water at all times to help them stay hydrated.
  • No direct sunlight: Keep your cat indoors during the hottest parts of the day, and close curtains or blinds to block out direct sunlight.
  • Good ventilation: A fan or window that provides good ventilation can help lower their body temperature
  • Cooling mats: Consider providing a cooling mat or damp towel for your cat to lie on if they seem to be struggling with the heat.

If you suspect your cat is experiencing heat stroke, move them to a cooler environment immediately and seek veterinary care. Signs of heat stroke may include panting, rapid heartbeat, vomiting, diarrhea, or lethargy. Prompt treatment is essential to prevent serious complications or even death.


9. Feline Stomatitis

Feline stomatitis, also known as lymphocytic plasmacytic stomatitis, is an inflammatory condition that affects a cat’s mouth and gums, causing pain, redness, and swelling. This discomfort often leads to excessive drooling and may make it difficult for your cat to eat, groom themselves, or even close their mouth properly. If left untreated, feline stomatitis can lead to severe oral pain, weight loss, and a decreased quality of life.

If you suspect your cat is suffering from feline stomatitis, it’s crucial to consult your veterinarian for a proper diagnosis and treatment plan. Your vet will likely perform a thorough oral examination, which may include dental X-rays, to assess the extent of the inflammation and rule out other potential causes of your cat’s signs.

Based on the diagnosis, your veterinarian may recommend a combination of treatments to manage feline stomatitis effectively. These treatments may include:

  • Dental cleanings: Regular professional dental cleanings under anesthesia can help remove plaque and tartar buildup, which may contribute to inflammation and discomfort.
  • Medications: Anti-inflammatory drugs or immunosuppressive medications may be prescribed to help reduce inflammation and alleviate pain. Antibiotics may also be recommended if there is a secondary bacterial infection present.
  • Pain management: Your vet may prescribe pain-relief medications to keep your cat comfortable during the treatment process.
  • Dietary changes: Switching to a soft, highly palatable, and hypoallergenic diet may help reduce irritation in your cat’s mouth and promote healing. Your vet can recommend appropriate food options based on your cat’s specific needs.
  • Oral hygiene: Maintaining good oral hygiene at home, such as regular tooth brushing or using dental chews and water additives, can help prevent further inflammation and promote overall oral health.
  • Surgical intervention: In severe cases, your vet may recommend surgical intervention, such as tooth extractions, to alleviate pain and inflammation associated with feline stomatitis.

10. Medications

vet checking bengal cat
Image By: Pressmaster, Shutterstock

Certain medications can cause thick saliva and drooling in cats as a side effect. For example, drugs like certain antibiotics, pain relievers, or sedatives may lead to increased salivation. If you suspect your cat’s medication is causing excessive drooling, it’s important to discuss alternative options with your vet.

Your veterinarian may recommend adjusting the dosage of the current medication, which could help reduce the side effects without compromising its effectiveness. In some cases, they might suggest switching to a different medication altogether, which may have fewer side effects or be better suited to your cat’s specific needs.

It’s important to remember that you should never adjust your cat’s medication dosage or switch medications without consulting your veterinarian first. They are best equipped to determine the most appropriate course of action based on your cat’s medical history, the specific medication being administered, and the severity of the side effects.


11. Neurological Disorders

Neurological disorders, including seizures or nerve damage, can result in excessive drooling in cats. These disorders may affect your cat’s ability to control their salivation, swallow, or even close their mouth properly. If you notice any unusual behaviors or signs, such as sudden loss of balance, muscle tremors, difficulty walking, or uncontrolled eye movements, consult your vet for further evaluation.

Your veterinarian may perform a series of diagnostic tests to determine the underlying cause of the neurological disorder. These tests could include blood work, X-rays, MRI or CT scans, or even a cerebrospinal fluid analysis, depending on the severity and nature of the signs. Once a diagnosis is made, your vet will recommend appropriate treatments based on the specific condition affecting your cat.

Treatment options for neurological disorders may vary widely, depending on the cause and severity of the condition. In some cases, medication may be prescribed to help manage the condition, such as anti-seizure drugs for cats with epilepsy or medications to reduce pain and improve nerve function in cats with nerve damage. In other cases, supportive care, physical therapy, or lifestyle modifications may be necessary to help your cat maintain a good quality of life.


12. Neoplasia or Tumor

Feline sublingual squamous cell carcinoma
Image By: MeowDr, Shutterstock

Just like humans, cats are also prone to cancer. Squamous Cell Carcinoma is the most common type of oral tumor in cats. Drooling may be observed when a cancerous mass develops involving the tongue or the back of the throat. Other signs include bleeding, pawing at the mouth, and pain when eating. It usually has a poor prognosis especially if the tumor has spread. Treatment would usually be invasive, including full surgical excision which is difficult due to the location.

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Conclusion

Understanding the potential reasons behind your cat’s thick saliva and drooling can help you take appropriate action to address the issue. Whether it’s making environmental adjustments, seeking veterinary care, or exploring home remedies, acting promptly and responsibly is essential for your feline’s well-being. Keep in mind that excessive drooling is a sign that something is going on with your pet. By staying vigilant and working closely with your veterinarian, you can ensure that your cat receives the best possible treatment, even when faced with unexpected challenges.

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Featured Image Credit: PongsakA, Shutterstock

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