Oral ulcers
More common causes
Aphthous stomatitis
Syphilis
Human immunodeficiency virus infection
Hand-foot-and-mouth disease
Oral candidiasis
Oral cancer
Infectious mononucleosis
Cytomegalovirus infection
Lichen planus
Less common causes
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pUISFixcN1w9peRjvZd
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Uncommon causes
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Pharmacological causes
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