Drooling is part of life with dogs but can be puzzling when a cat does it. Some cat drooling is considered normal, but new, excessive, or persistent drooling can indicate an underlying issue. Our Oliver Animal Hospital South Austin veterinary team explains common reasons why cats drool and when cat owners should seek veterinary care.

Cats may drool when content and relaxed 

Some cats drool when they are happy and relaxed, often while being petted or cuddled in their favorite way. This drooling is usually accompanied by purring or kneading and has a meaning similar to a dog’s tail wag.

Cats may drool when nauseated

Nausea or motion sickness can cause a cat to drool. If your cat drools during car rides or after eating, the cause may be an upset stomach. Medications can address nausea or motion sickness and reduce drooling.

Cats may drool when they have dental problems

Periodontal disease, gingivitis, or resorptive lesions that cause significant discomfort can lead to excessive salivation. Cats with dental problems may also have bad breath or difficulty chewing. Regular dental checkups and professional cleanings can prevent and treat dental issues in cats.

Cats may drool when they have a foreign body stuck in their mouths

Cats who get foreign bodies, such as string, stuck in their mouths or wrapped around their tongues may drool. These cats may partially swallow linear objects and appear to be in distress, often pawing at the mouth, gagging, or refusing to eat. Oral foreign bodies require prompt veterinary attention.

Cats may drool when they have respiratory infections

Upper respiratory infections (URIs) can cause inflammation and discomfort in the nose, mouth, and throat, leading to drooling. Other URI signs include sneezing, nasal discharge, coughing, and decreased appetite. 

Cats may drool when they have kidney disease 

Chronic kidney disease (CKD) leads to toxin accumulation in the blood, which can cause nausea and oral ulcers, resulting in drooling. Other CKD signs include increased thirst, frequent urination, weight loss, and lethargy.

Cats may drool when stressed and anxious

Cats are sensitive creatures who can easily become stressed or anxious. Drooling can result from acutely stressful situations, especially if the stress also reduces their appetite or upsets their stomach. Moving to a new home, introducing a new pet, physical illness, or changes in routine can trigger stress in cats. 

Cats may drool when frightened or excited 

Some cats drool when they are frightened, on edge, or excited. For example, a trip to the veterinarian or seeing another cat outside might cause your cat to drool. This drooling should subside once the triggering situation is over. 

Cats may drool when exposed to toxins

Drooling can signify that your cat has ingested something toxic, including plants, cleaning products, medications, or foods. Poisoning signs can escalate quickly and may include vomiting, diarrhea, lethargy, and seizures. If you suspect your cat has been exposed to a toxin, immediately contact the American Society for the Prevention of Cruelty to Animals (ASPCA) Animal Poison Control Center.

Cats may drool after taking medication

Drooling can be a medication side effect if it causes your cat nausea. However, drooling that happens immediately after medication administration is likely related to a bitter flavor. This drooling can also occur in response to strong odors but should subside a few minutes after exposure to the offending substance.

When to seek veterinary care for your drooling cat

Occasional drooling is normal in cats, especially when related to emotions, including fear, anxiety, happiness, or stress. Most cats who drool in these situations do so from a young age and develop a predictable pattern. However, you should schedule a veterinary exam if you have an older cat who suddenly begins drooling excessively. If you suspect your cat has motion sickness or behavior problems, talk to our team about medications that may help.

You should also seek care if your cat’s drooling is accompanied by other concerning signs, which can indicate an underlying health problem. Contact us if, in addition to drooling, your cat exhibits the following signs:

  • Appetite loss
  • Weight loss
  • Vomiting or diarrhea
  • Lethargy
  • Difficulty eating or drinking
  • Nasal or eye discharge
  • Bad breath
  • Pawing at the mouth

Our team will perform a thorough exam and may recommend diagnostic tests or treatments, such as blood work, imaging studies, a professional dental cleaning, or anti-nausea medications, to address your cat’s problem.

Some reasons for feline drooling are benign, but others can indicate health issues that require veterinary attention. Contact our South Austin Oliver Animal Hospital team if you have concerns about your cat’s drooling or to schedule your cat’s next routine veterinary visit.