PDF download Download Article
Learn to recognize and resolve your cat's symptoms
PDF download Download Article

Mouth ulcers can occur in cats for a number of reasons, from plaque buildup to feline immunodeficiency virus (FIV). Mouth ulcers typically manifest as small, open sores in the mouth that can cause bleeding and pain, especially if left untreated. If you notice mouth ulcers in your cat, or other symptoms that cause you to believe your cat could develop ulcers, contact your vet immediately so that they can diagnose the underlying cause of the ulcers and start your cat on a treatment plan.

Part 1
Part 1 of 3:

Checking for Ulcer Symptoms

PDF download Download Article
  1. Ulcers are typically the most obvious symptoms of a number of oral problems including gingivostomatitis, caudal stomatitis, and chronic ulcerative paradental stomatitis. Check the gums and cheek area for small to medium, round or oblong wounds that may or may not bleed and expose the tissue below. [1]
    • Ulcers can occur in a number of places within the mouth. Use the length of your finger to gently pull up on your cat’s cheek and check the gums, inner cheeks, tongue, and roof of the mouth. Be sure to check the edges of the tongue, and beneath the tongue as well.
  2. If you cannot tell for sure whether your cat has an oral ulcer, look for other symptoms including bad breath, swollen gums, excessive drooling, thick stringy saliva, loss of appetite, and difficulty eating. Look carefully around your cat’s mouth and monitor their eating habits to check for other mouth ulcer symptoms. [2]
    • Take regular, careful looks at your cat’s teeth and gum lines. Swelling around a tooth, inflammation of the gums, and bleeding at the gum line may all be indicators of an ulcer or a larger oral health problem.
    Advertisement
  3. Ulcers can be symptoms of larger problems, such as feline calicivirus, an upper respiratory infection common in cats. If you notice mouth ulcers in your cat, take note of other calicivirus symptoms such as sneezing, nasal congestion, inflammation around the eyes, and discharge around the eyes and nose. [3]
    • If you notice symptoms of calicivirus, contact your vet immediately. Let them know what symptoms your cat is experiencing, and when they first started to appear.
    • Your vet may request you bring your cat in for a visit, or may give you instructions for home treatment. Follow your vet’s instructions carefully.
  4. Advertisement
Part 2
Part 2 of 3:

Getting a Vet to Diagnose Ulcers

PDF download Download Article
  1. If you notice symptoms of ulcers or open wounds in your cat’s mouth, make an appointment for an oral exam with your vet. Your vet can tell you not only whether your cat has ulcers, but also may be able to pinpoint their cause. [4]
    • If your vet notices ulcers, they may ask for permission to perform x-rays and determine whether there is any additional damage to your cat’s jaw.
    • Let your vet know what symptoms you’ve noticed, including those that aren’t directly related to mouth injuries, swelling, or bleeding. This may help your vet better diagnose underlying medical issues.
  2. Depending upon what your vet finds during the oral inspection, they may ask permission to run blood or urine tests to determine the cause of the ulcers. Allow your vet to run the tests, as this can help your vet determine the exact cause of your cat’s ulcers and plan better treatment. [5]
    • Urine tests are generally not painful for cats, and blood tests cause only momentary discomfort.
    • Ulcers can be symptomatic of other, more significant infections, diseases, and health issues with cats, including chronic kidney disease, feline viral rhinopneumonitis (FVR) and feline immunodeficiency virus (FIV). Proper diagnosis is necessary to lead to proper treatment and better health for your cat.
  3. If your vet diagnoses your cat with mouth ulcers or a mouth ulcer-causing condition, ask specific questions about care for your cat. Inquire, “Will my cat need surgery or other immediate treatment?” and, “What sort of long term care should I expect to provide for my cat?” [6]
    • Treatment of ulcers will depend greatly upon the cause of the ulcers. Follow your vet’s recommendations closely and make appointments with them and with specialists as necessary.
    • The ulcers themselves will probably be treated symptomatically with a mouth rinse and/or pain medication. The underlying cause for the ulcers will need to be treated as well to prevent more ulcers from forming.
  4. Advertisement
Part 3
Part 3 of 3:

Caring for Mouth Ulcers

PDF download Download Article
  1. If you notice discharge, a foul smell, and red and tender areas around the gums, the ulcer may have become infected. Talk to your vet immediately about a prescription for an antimicrobial or antibiotic treatment. [7]
    • Treatment may be given by topical medication or through ingestion. Be sure to check the packaging and follow instructions for administering the drug carefully.
  2. Regularly brush your cat’s teeth, up to twice a day, to help keep plaque from accumulating and making ulcer-causing conditions worse. Use a soft-bristled or silicone toothbrush and specially formulated toothpaste for cats to gently brush your cat’s teeth on a regular basis. [8]
    • Wet the toothbrush and apply a small amount of toothpaste. Then, gently massage the brush against your cat’s teeth, focusing on the areas where the teeth meet the gums.
    • Toothbrushes and toothpaste formulated for cats is available at most pet stores, as well as online.
  3. On top of cleaning your cat’s teeth, try to schedule oral cleanings regularly with your vet. Talk to your vet about the frequency at which your cat should receive dental cleanings, and try to stick to that schedule. [9]
    • Regular cleanings also allow your vet the chance to extract diseased teeth, which can help prevent ulcers from spreading or getting worse.
  4. Advertisement

Expert Q&A

Ask a Question
      Advertisement

      Tips

      • If you think the ulcers are causing your cat any pain, talk to your vet about a proper pain management program, which may require prescription pain medication.
      • If your cat is struggling to eat, switch them to soft food, which requires less chewing.
      Submit a Tip
      All tip submissions are carefully reviewed before being published
      Name
      Please provide your name and last initial
      Thanks for submitting a tip for review!
      Advertisement

      About This Article

      Article Summary X

      To diagnose and treat mouth ulcers in cats, start by checking your cat's gums, inner cheeks, and tongue for round wounds. You can also monitor your cat for other symptoms of ulcers, like bad breath, excessive drooling, swollen gums, loss of appetite, and difficulty eating. Then, if you think your cat has mouth ulcers, take it to see a vet as soon as possible for a proper diagnosis. Follow your vet's recommended treatment plan, which may include prescription medications and regular teeth cleanings. For more tips from our Veterinary co-author, like how to brush your cat's teeth, read on!

      Did this summary help you?
      Thanks to all authors for creating a page that has been read 133,387 times.

      Reader Success Stories

      • Randy Krasnansky

        Oct 24, 2021

        "My cat has stickers in and around his mouth. Not sure how this happened. He came home six days later looking like ..." more
      Share your story

      Did this article help you?

      Advertisement