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Learn about your lesions on the roof of the mouth, including causes and common questions. Or get a personalized analysis of your lesions on the roof of the mouth from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

Lesions on the Roof of the Mouth Checker

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Your Lesions on the Roof of the Mouth May Also be Known as:
Blister on my roof of the mouth
Bump on my roof of the mouth
Lump on my roof of the mouth
Roof of the mouth blister
Roof of the mouth bump
Roof of the mouth lump
Roof of the mouth sore
Sore on my roof of the mouth

Top 6 Lesions on the Roof of the Mouth Causes

  1. 1.Cold Sore

    Cold sores (also called oral herpes or fever blisters), are viral infections of the mouth caused by the herpes virus type 1. You were probably infected very early in life as a child when an adult kissed you. The virus stays asleep (dormant) and causes infections every now and then after exposure to lots of sun or emotional/physical stress. It is contagious when an outbreak is happening, but treatment is limited unless you are immunocompromised.

    You can safely stay home or try some minor treatments. As a viral infection, it will go away on its own without antibiotics. Balm mint cream (1%) or topical rhubarb-sage cream may improve symptoms, but it's not standard treatment.

    Rarity:
    Uncommon
    Top Symptoms:
    mouth lesions, pain on the outside of the lips, itchy mouth, burning pain on the outside of the lips, lip numbness
    Symptoms that always occur with cold sore:
    mouth lesions
    Urgency:
    Self-treatment
  2. 2.Amalgam Tattoo From a Tooth Filling

    An amalgam tattoo is a grey, blue, or black area on the gums caused by a bit of dental amalgam (the silver-like material used to fill cavities in the teeth).

    You do not need treatment for an amalgam tattoo as it is completely benign. If it changes at all (grows or changes color), you should go get checked out by your doctor, who will take a diagnostic biopsy.

    Rarity:
    Uncommon
    Top Symptoms:
    mouth rash resembling an amalgam tattoo
    Symptoms that always occur with amalgam tattoo from a tooth filling:
    mouth rash resembling an amalgam tattoo
    Urgency:
    Wait and watch
  3. 3.Canker Sore

    Canker sores are small, grayish-white sores in the mouth, often on the inside of the cheeks, lips, and on the tongue. No one really knows why canker sores happen, but it seems to be inherited and susceptible to vitamin deficiencies and allergies.

    You can safely treat this condition on your own using Chlorhexidine mouth washes (Peridex or Periogard) or steroid medications (Orabase, Betnesol, or Ovar).

    Rarity:
    Common
    Top Symptoms:
    painful mouth sore, numerous mouth sores, mouth sore surrounded by a red area, single mouth sore, oral ulcer
    Symptoms that always occur with canker sore:
    painful mouth sore
    Urgency:
    Self-treatment

    Lesions on the Roof of the Mouth Checker

    Take a quiz to find out why you’re having lesions on the roof of the mouth.

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  4. 4.Strep Throat Requiring Throat Swab

    Strep throat is a bacterial throat infection that can make the throat feel sore and scratchy. Only a small portion of sore throats are the result of strep throat. And, if you do not show enough signs of a true strep throat, testing may be needed before treatment is begun.

    You should visit your primary care physician within the next 24 hours, where a diagnosis can be made via a "rapid antigen test" (it's a throat swab). Treatment with simple antibiotics would be given only if the test is positive. It is important to get treatment, however, because of the possibility of getting a disease called "rheumatic fever" after the strep throat infection.

    Rarity:
    Common
    Top Symptoms:
    fatigue, nausea, sore throat, fever, rash
    Symptoms that always occur with strep throat requiring throat swab:
    sore throat
    Symptoms that never occur with strep throat requiring throat swab:
    general weakness
    Urgency:
    Primary care doctor
  5. 5.Acute Viral Sinusitis

    Sinusitis is an inflammation of the sinus spaces behind the nose and cheeks. These spaces produce mucus, which drains into the nose. If the nose is swollen or if the mucus does not drain, this can block the sinuses and cause pain or infection.

    You can treat your symptoms at home using ibuprofen (for pain) and Tylenol (for a fever). Antibiotics for this diagnosis are not helpful because this is likely a viral infection.

    Rarity:
    Common
    Top Symptoms:
    headache, cough, sore throat, sinusitis symptoms, muscle aches
    Symptoms that always occur with acute viral sinusitis:
    sinusitis symptoms
    Symptoms that never occur with acute viral sinusitis:
    being severely ill
    Urgency:
    Self-treatment
  6. 6.Head and Neck Cancer

    There are five main types of head and neck cancer, which are all named according to the part of the body where they develop: laryngeal (voice box), nasal cavity and sinus, nasopharyngeal (air passage way behind the nose), oral (mouth), and salivary gland cancers. Most of these cancers are squamous cell carcinomas (SCCs), meaning they begin in the flat (squamous) cells that make up the thin surface layer of the structures in the head and neck.

    You should visit your primary care physician who will coordinate your care with a cancer specialist (oncologist) for further testing. It is impossible to definitively diagnosis head and neck cancers without lab testing and biopsy. Treatment is likely to include surgery and chemotherapy.

    Rarity:
    Rare
    Top Symptoms:
    loss of appetite, unintentional weight loss, hoarse voice, trouble swallowing, pain with swallowing
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Lesions on the Roof of the Mouth

  • Q.How many sore/blister/bumps do you have?
  • Q.When did you develop the sore/blister/bump?
  • Q.Is the sore/blister/bump painful to the touch?
  • Q.Any fever today or during the last week?

If you've answered yes to one or more of these questions, check our lesions on the roof of the mouth symptom checker.

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Lesions on the Roof of the Mouth Symptom Checker Statistics

  • People who have experienced lesions on the roof of the mouth have also experienced:

    • 15% Sore Throat
    • 4% Burning Pain in the Roof of the Mouth
    • 4% Stiff Neck
  • People who have experienced lesions on the roof of the mouth had symptoms persist for:

    • 47% Less Than a Day
    • 28% Less Than a Week
    • 10% Over a Month
  • People who have experienced lesions on the roof of the mouth were most often matched with:

    • 40% Cold Sore
    • 13% Canker Sore
    • 7% Amalgam Tattoo From a Tooth Filling

Lesions on the Roof of the Mouth Checker

Take a quiz to find out why you’re having lesions on the roof of the mouth.

Take a quiz