Alternative Names
Oral ulcer; Stomatitis - ulcerative; Ulcer - mouth
Definition of Mouth ulcers:
Mouth ulcers are sores or open lesions within the mouth, caused by various disorders. (See also mouth sores or canker sores)
Causes, incidence, and risk factors:
Mouth ulcers are caused by many disorders. These include:
The skin lesion of histoplasmosis may also appear as a mouth ulcer.
Canker sores are more common in young adults than in children or older adults.
