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You are here : 3-RX.com > Medical Encyclopedia > Diseases and Conditions > Mouth Ulcer
      Category : Health Centers > Mouth and Teeth (Oral and Dental)

Mouth Ulcer

Alternate Names : Canker Sore, Oral Ulcer, Denture Sore, Ulcerative Stomatitis

Overview, Causes, & Risk Factors | Symptoms & Signs | Diagnosis & Tests | Prevention & Expectations | Treatment & Monitoring

A mouth ulcer is a small sore in the mucuous membranes inside the mouth.

What is going on in the body?

The mouth is sensitive to many irritations. Problems in other parts of the body can also cause sores in the mouth. Although most mouth sores will go away by themselves and are of little concern, some are much more serious.

What are the causes and risks of the condition?

There are many causes of mouth ulcers. They range from minor irritants to mouth cancer. Some of the common causes are as follows:

  • accidental cheek, lip, or tongue biting
  • accidental damage from tooth brushing
  • allergic reaction to medications
  • burns from food or drink that is too hot
  • burns or irritations from medications, such as aspirin
  • cancer of the mouth or lips
  • chemotherapy or radiation therapy
  • denture sores
  • electrical burns
  • food allergy
  • HIV, the virus that causes AIDS
  • food allergy
  • an impacted tooth
  • irritation from a dental procedure
  • irritation from orthodontic appliances
  • localized irritation from a disease, such as Parkinson's disease
  • medications that cause mouth dryness, including antihistamines such as diphenhydramine
  • a new tooth coming in, known as a tooth eruption
  • reactions to tobacco products
  • serious medical illnesses that weaken the person, such as cancer
  • some sexually transmitted diseases, such as gonorrhea
  • viral disease, such as oral herpes
  • Women are more prone to mouth ulcers than men are, especially during pregnancy or right before a menstrual period.


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    Mouth Ulcer: Symptoms & Signs

    Author: Marvin Goldfogel, DDS
    Reviewer: Eileen McLaughlin, RN, BSN
    Date Reviewed: 08/06/01

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