Disease or Syndrome
stomatitis Audio
sto·ma·ti·tis [ stoh-muh-tahy-tis, stom-uh- ]
Subclass of:
Mouth Diseases
Etymology:
Greek stoma = mouth + -itis = inflammation
Also called:
Oral Mucositis
Definitions related to stomatitis:
  • Inflammation of the oral mucous membranes.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
  • INFLAMMATION of the soft tissues of the MOUTH, such as MUCOSA; PALATE; GINGIVA; and LIP.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Inflammation or irritation of the mucous membranes in the mouth.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • Stomatitis is an inflammation of the mucous membranes of any of the structures in the mouth.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • (mucositis oral) A disorder characterized by ulceration or inflammation of the oral mucosal.
    Common Terminology Criteria for Adverse Events
    U.S. National Institutes of Health, 2021
  • Oral inflammation and ulcers, known as stomatitis, may be mild and localized or severe and widespread. They are invariably painful.
    Merck Manuals
    Merck & Co., Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.