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

A.I. Health Assistant

Take a quiz to find out why you’re having numerous mouth sores

Take Quiz

A.I. Health Assistant Causes for Numerous Mouth Sores

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced numerous mouth sores. This list does not constitute medical advice.

  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
  2. 2.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.

    1-2 weeks. Natural healing process starts within 24 hours of the initial sore starting.

    Rarity:
    Uncommon
    Top Symptoms:
    mouth lesions, itchy mouth, pain on the outside of the lips, lip numbness, burning pain on the outside of the lips
    Symptoms that always occur with cold sore:
    mouth lesions
    Urgency:
    Self-treatment

    Numerous Mouth Sores Checker

    Take a quiz to find out why you’re having numerous mouth sores.

    Take Quiz
  3. 3.Oral Herpes

    Herpetic stomatitis is a viral infection of the mouth that causes fever and red and inflamed gums. This typically happens early in childhood.

    1-2 weeks but recurrent

    Rarity:
    Rare
    Top Symptoms:
    fever, gum pain, painful mouth sore, gum swelling, gum redness
    Symptoms that always occur with oral herpes:
    gum pain
    Urgency:
    Self-treatment
  4. 4.Mouth and Throat Sores From Cancer Treatment

    Mouth sores are a common side effect of cancer treatment (chemotherapy or radiation therapy). Some types of chemotherapy are more likely to cause this than others. Cancer treatments are used to kill the bad cancerous cells, but unfortunately they also affect healthy cells. The cells of the inner lining of your mouth, esophagus (the tube that carries food from the mouth to stomach) and stomach can get damaged too. This can result in symptoms like red areas or a burning feeling in the mouth, painful sores and painful or difficulty swallowing.

    In most cases, mouth sores get better within a few days.

    Rarity:
    Rare
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Numerous Mouth Sores

  • Q.Do you have a rash?
  • Q.Any fever today or during the last week?
  • Q.Stress can cause changes in your body. Are you under a lot of stress?
  • Q.Have you ever been diagnosed with canker sores?

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

Take Quiz

Numerous Mouth Sores Symptom Checker Statistics

  • People who have experienced numerous mouth sores have also experienced:

    • 10% Sore Throat
    • 4% Fatigue
    • 3% Fever
  • People who have experienced numerous mouth sores had symptoms persist for:

    • 47% Less Than a Week
    • 26% Less Than a Day
    • 11% Over a Month
  • People who have experienced numerous mouth sores were most often matched with:

    • 33% Canker Sore
    • 33% Cold Sore
    • 33% Oral Herpes
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

A.I. Health Assistant

Take a quiz to find out why you’re having numerous mouth sores

Take Quiz