<Tr> <Th> MeSH </Th> <Td> D013280 </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> Stomatitis is inflammation of the mouth and lips . It refers to any inflammatory process affecting the mucous membranes of the mouth and lips, with or without oral ulceration . </P> <P> In its widest meaning, stomatitis can have a multitude of different causes and appearances . Common causes include infections, nutritional deficiencies, allergic reactions, radiotherapy, and many others . </P>

Inflammation of the mucous membrane of the mouth