Read below about single mouth sore, including causes and common questions. Or get a personalized analysis of your single mouth sore 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.

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2 Potential Single Mouth Sore Causes

Disclaimer: The article does not replace an evaluation by a physician. Information on this page is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.

  1. 1.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.

    1 week

    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

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  2. 2.Mucous Cyst (Mucocele)

    A mucocele (mucous cyst) is NOT a serious tumor. It's typically caused by repeated biting leading to leakage of mucous from damaged mucous ducts, which accumulates and creates a cyst. It's most commonly found in kids, and usually inside the lower lip but also possibly under the tongue or in the inner cheek.

    Cured with treatment. Comes back 14% of the time, though.

    Rarity:
    Common
    Top Symptoms:
    painful mouth sore, painless mouth sore, single mouth sore, sores on the inner cheek, sores on the inner lip
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Single Mouth Sore

  • Q.Any fever today or during the last week?
  • Q.Do you have a rash?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?
  • Q.Are you experiencing a headache?

If you've answered yes to one or more of these questions, try our single mouth sore symptom checker to find out more.

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Single Mouth Sore Symptom Checker Statistics

  • People who have experienced single mouth sore have also experienced:

    • 7% Neck Bump
    • 7% Sore Throat
    • 5% White, Lacy Plaque on Tongue
  • People who have experienced single mouth sore had symptoms persist for:

    • 46% Less Than a Week
    • 27% Less Than a Day
    • 10% Over a Month
  • People who have experienced single mouth sore were most often matched with:

    • 13% Canker Sore
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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