Symptoms A-Z

Mouth Redness Symptoms, Causes & Common Questions

Understand your mouth redness symptoms, including 5 causes & common questions.

Mouth Redness Symptom Checker

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5 Possible Mouth Redness Causes

The list below shows results from the use of our quiz by Buoy users who experienced mouth redness. This list does not constitute medical advice and may not accurately represent what you have.

Vitamin b12 deficiency

B12 is an essential vitamin for the production of myelin, a compound that speeds up the conduction of nerve impulses, and the production of red blood cells, the cells that carry oxygen throughout the body. It only occurs naturally in diets containing animal byproducts.



Gingivitis is the inflammation of the gums. It is typically caused by poor dental hygiene and the buildup of bacteria. Its hallmark symptoms are swollen, discolored, bleeding gums. The main risk factors for the development of the disease are increasing age, smoking, and dry mouth. It is both treatable and ...

Mouth Redness Symptom Checker

Take a quiz to find out what might be causing your mouth redness

Cold sore

A cold sore is a skin lesion on the lips caused by infection with the herpes simplex virus (HSV). Cold sores are extremely common. In fact, most adults are infected with HSV, usually transmitted in childhood by normal close contact with parents, siblings or friends.

While the infection can be entirely unnoti...

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.

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

Burning mouth syndrome

Burning mouth syndrome (BMS) is a chronic pain syndrome defined as having a burning pain or sensation in your mouth without a cause that can be found. It happens way more often in women (7 times more likely), typically during times of hormonal changes (just before or during menopause). While no one has identified the cause, it could have to do with the makeup of saliva, damage from dentures, tics or teeth grinding, infections, and even autoimmune diseases.

Rarity: Common

Top Symptoms: dry mouth, changed sense of taste, tongue pain, burning sensation in the mouth, moderate mouth pain

Symptoms that always occur with burning mouth syndrome: burning sensation in the mouth, tongue pain

Urgency: Primary care doctor

Questions Your Doctor May Ask About Mouth Redness

To diagnose this condition, your doctor would likely ask the following questions:

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

The above questions are also covered by our A.I. Health Assistant.

If you've answered yes to one or more of these questions

Take a quiz to find out what might be causing your mouth redness

Mouth Redness Symptom Checker Statistics

People who have experienced mouth redness have also experienced:

  • 14% Mouth Pain
  • 9% Dry Mouth
  • 4% Metallic/Garlic Taste In The Mouth

People who have experienced mouth redness were most often matched with:

  • 42% Vitamin B12 Deficiency
  • 42% Gingivitis
  • 14% Cold Sore

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

Mouth Redness Symptom Checker

Take a quiz to find out what might be causing your mouth redness

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.