Stomatitis is an inflammation of the mucous lining of any of the parts of the mouth, including the cheeks, gums, tongue, lips, and roof or floor of the mouth. The word "stomatitis" literally means "inflammation of the mouth." This inflammation can be caused by conditions in the mouth itself, such as poor oral hygiene, poorly fitted dentures, mouth burns from hot food or drinks, or by conditions that affect the entire body, such as medications, allergic reactions, or infections.

Stomatitis is usually a painful condition, with redness, swelling, bleeding, or bad breath. Stomatitis affects all age groups, from the infant to the elderly.

A number of factors can cause stomatitis. Poorly fitted oral appliances, cheek biting, or jagged teeth can irritate the mouth. Chronic breathing through the mouth becuase of clogged nasal passages can dry the mouth, which can lead to irritation. Diseases such as cold sores, gonorrhea...