What condition is characterized by inflammation of the mouth?

The condition characterized by inflammation of the mouth is stomatitis. This term encompasses inflammation that can affect the mucous membrane lining the oral cavity, which can involve any area of the mouth, including the cheeks, gums, tongue, lips, and the roof or floor of the mouth. Symptoms often include pain, swelling, and ulcers, which can make eating and speaking uncomfortable.

Glossitis refers specifically to inflammation of the tongue, while gingivitis is localized inflammation of the gums. Pharyngitis involves inflammation of the pharynx, which is located further down the throat and does not include the mouth itself. By identifying stomatitis as the correct answer, it becomes clear that it is the most comprehensive term encompassing different types of oral inflammation.