symptom-digestive 7 min read · v1

Why Is My Cat Licking Their Lips and Swallowing Repeatedly?

Breed: All Cats | Published: July 6, 2026 | Source: allpets.ai

Repeated lip licking and gulping in cats often signals nausea, oral pain, or a foreign body; less commonly kidney disease or stress. Learn causes, home care, and when to seek urgent vet care.

Overview

Seeing your cat repeatedly lick their lips, swallow, or make gulping motions can be worrying. These behaviors are common signs that something is irritating the mouth or that the cat feels nauseated. Causes range from simple hairballs or stress-related behavior to more serious problems such as dental pain, foreign bodies in the mouth or throat, or systemic disease like chronic kidney disease (CKD). This guide explains the likely causes, how to monitor your cat at home, when a veterinary exam is needed urgently, and red flags that require emergency care.

What does lip licking and swallowing mean?

Lip licking and frequent swallowing are non-specific signs. In cats they most commonly indicate:

Nausea (cats often lick their lips and swallow saliva when nauseated)
Oral discomfort or pain (dental disease, ulcers, broken teeth)
A foreign object or sensation in the mouth/throat
Behavioral responses to stress or nausea (excessive grooming, licking)

Because cats hide illness, even mild-looking signs can be the tip of a more serious problem. If the behavior is new, increasing, or accompanied by other signs (vomiting, drooling, not eating), plan to investigate with your veterinarian.

Differential diagnosis — common causes (ranked by likelihood)

Nausea / gastrointestinal upset (most likely)

- Causes: dietary indiscretion, mild gastroenteritis, hairballs, early systemic illness - Typical signs: lip licking, swallowing, drooling, lip smacking, sometimes vomiting or decreased appetite

Hairball formation (very common in long-haired cats)

- Cause: ingested hair forming a ball in the stomach or esophagus causing retching, lip licking - Typical signs: gagging or retching without productive vomiting, hacking, swallowing motions

Oral pain / dental disease

- Causes: periodontal disease, stomatitis, fractured tooth, oral ulcers - Typical signs: bad breath, drooling, pawing at face, reluctance to eat hard food, lip licking

Foreign body / stuck object (esophagus/oropharynx)

- Causes: plant awns, fishhooks/lines, small bone fragments, string - Typical signs: sudden onset drooling, gagging, pawing at mouth, repeated swallowing, inability to eat; can lead to infection or perforation

Systemic disease — chronic kidney disease, hepatic disease, or toxin exposure

- Causes: uremia from CKD causes nausea and drooling; liver disease can cause inappetence and nausea - Typical signs: increased drinking/urination (CKD), weight loss, vomiting, lethargy

Neurologic or vestibular causes (less common)

- When swallowing motions are part of generalized neurologic signs: head tilt, incoordination

Behavioral / stress-related licking

- Cause: displacement behavior in anxious or stressed cats - Typical signs: excessive grooming, licking objects, sometimes without other illness signs

How nausea looks in cats

Cats rarely vomit until illness is advanced compared with dogs. Instead, they may:

Lick lips or repeatedly swallow saliva
Salivate or drool
Show decreased appetite or avoid food
Groom more or less than usual
Retch or hack when trying to produce a hairball

Because prolonged inappetence can quickly lead to hepatic lipidosis (fatty liver), a cat that stops eating for 24–48 hours needs prompt veterinary attention.

Home observation and care (safe steps)

You can do several things at home while monitoring your cat, but never attempt to diagnose or treat serious conditions yourself.

Observe and note: timing, frequency, any vomiting, drooling, pawing at mouth, appetite, drinking, litterbox changes, breath odor, and any recent access to toxins or foreign objects.
Check the mouth gently only if your cat allows it: look for obvious broken teeth, blood, foreign objects, or bad breath. Do not force the mouth open or push on the throat.
Grooming: if your cat has long hair, regular brushing reduces hair ingestion and hairball risk.
Diet: offer small, palatable meals. If your cat refuses food for more than 24 hours (adult) or 12 hours (young, elderly, or ill), contact your vet — do not try prolonged home fasting.
Hairball remedies: over-the-counter lubricants and hairball formulas can be useful for mild, recurrent hairball issues. Use only products labeled for cats and follow package directions.
Reduce stress: if you suspect anxiety, reduce environmental triggers — provide hiding spots, predictable routines, and enrichment. Severe behavioral licking should be assessed by a veterinarian or behaviorist.

Important: do not induce vomiting, give human medications (including pain relievers), or try to remove embedded foreign bodies yourself — these actions can make the problem worse.

When to See a Vet Immediately (prominent)

Seek immediate veterinary attention if your cat has any of the following:

Repeated lip licking/swallowing with drooling, gagging, or acute distress
Inability to eat or drink, or refusal to eat for >24 hours
Continuous retching or unproductive gagging (possible stuck hairball or foreign body)
Signs of oral pain: excessive drooling, blood in saliva, pawing at the mouth
Difficulty breathing, noisy breathing, or swallowing very badly
Sudden onset of severe lethargy, collapse, seizures, or abnormal behavior
Suspected toxin ingestion (household chemicals, insecticides, human medications)

If a foreign object is suspected in the mouth or throat (e.g., string, fishhook, grass awn), this can quickly become an emergency — do not wait.

Red Flags — Seek Emergency Care

Open-mouth breathing or severe respiratory distress
Strong, foul-smelling breath with swelling around the head/neck (possible abscess)
Profuse bleeding from the mouth
Evidence of an embedded object (e.g., visible string, hook) or something protruding from the mouth/throat
Signs of systemic toxin exposure: vomiting, seizures, drooling, unsteady gait

Call your regular veterinarian or an emergency clinic; if you suspect poisoning, also contact the ASPCA Animal Poison Control Center or Pet Poison Helpline for guidance.

What your vet will likely do

At the clinic the veterinarian will take a focused history and perform a physical exam, including oral and throat inspection. Diagnostics often include:

Oral exam under sedation if needed
X‑rays or contrast studies if a foreign body is suspected
Bloodwork (CBC, chemistry) to look for kidney disease, liver disease, or infection
Urinalysis (especially if CKD is suspected)
Dental X‑rays if dental disease is suspected

Treatment depends on the cause: dental care for oral disease, endoscopic or surgical removal for foreign bodies, supportive care and fluids for systemic illness, or anti-nausea medications when appropriate.

Stress-related licking vs. medical causes

Stress or boredom can produce excessive licking behaviors that look similar to nausea-driven lip licking. Clues that point toward behavioral causes:

Licking occurs in specific situations (after owner leaves, around loud noises)
The behavior is directed at fur or objects rather than lips and throat
No other signs of illness (normal appetite, activity, and elimination)

Behavioral concerns benefit from environmental modification (more enrichment, predictable routines), pheromone therapy, and consultation with your veterinarian or a veterinary behaviorist. However, always rule out medical causes before assuming behavior.

Special considerations: hairballs

Hairballs are a frequent cause of lip licking, retching, and occasional vomiting:

Signs: hacking or retching, frequent swallowing, small hairball-producing vomit, intermittent appetite changes
Management: regular grooming, hairball lubricants, fiber-enriched diets; address underlying over-grooming causes

If hairball signs are severe, persistent, or accompanied by lethargy/refusal to eat, see your vet — an obstructing hairball or other obstruction may require removal.

Kidney disease and other systemic causes

Chronic kidney disease and liver disease can cause nausea and drooling in cats. With CKD you may see increased drinking/urination, weight loss, and poor coat condition. Blood and urine tests are needed for diagnosis and management. Nauseous cats with systemic disease often need fluid therapy, anti-nausea medications, and treatment for the underlying condition.

Prevention and long-term care

Regular dental checks and cleanings as advised by your vet
Routine grooming to reduce hair ingestion
Keep small, dangerous objects and strings out of reach
Maintain a consistent feeding and environmental routine
Early vet checks for changes in appetite, weight, or behavior

Key Takeaways

Lip licking and repeated swallowing in cats commonly indicate nausea, oral irritation, hairballs, or a foreign body; systemic disease (eg, CKD) and stress are other possibilities.
Monitor appetite, drinking, vomiting, drooling, and behavior. Note any access to potential toxins or small objects.
Seek immediate vet care for drooling, persistent retching, inability to eat, signs of oral pain, breathing trouble, or suspected foreign body or toxin ingestion.
Home care includes observation, grooming, offering small palatable meals, and using hairball prevention strategies — but never attempt to remove embedded objects or give human medications.

If you’re unsure how urgent the problem is, call your veterinarian and describe your cat’s behavior and any other signs. When in doubt, it’s safer to have a professional check your cat.

Sources: Merck Veterinary Manual (Vomiting and Oral Disease), veterinary emergency resources (ASPCA Animal Poison Control, veterinary clinical references).

Frequently Asked Questions

Is repeated lip licking the same as vomiting?

Not always. Lip licking and swallowing are often signs of nausea or oral irritation and may precede vomiting, but they can also occur alone (for example, with dental pain or stress). If lip licking continues or is followed by vomiting or refusal to eat, see your vet.

Can stress cause my cat to lick their lips and swallow a lot?

Yes — stress and anxiety can produce displacement behaviors such as excessive grooming or licking. However, medical causes (dental pain, nausea, foreign body) must be ruled out first, so get a veterinary check if the behavior is new or persistent.

What should I do if I think my cat has a hairball?

Gently monitor your cat. Offer small, palatable meals and consider grooming to reduce hair ingestion. Over-the-counter hairball lubricants may help for mild, recurrent hairballs. If your cat is retching without producing a hairball, won't eat, or seems lethargic, contact your veterinarian.

Could this be a sign of kidney disease?

Yes. Chronic kidney disease can cause nausea, drooling, and decreased appetite. Look for other signs such as increased drinking/urination, weight loss, and dull coat. Blood and urine tests are needed to diagnose and manage CKD.

References & Citations

Parts of this article reference data from Merck Veterinary Manual.

Tags: feline-healthsymptomsemergencydentalgastrointestinal