Total 33 clinical symptoms reported for Peutz-Jeghers syndrome  Very Frequent (5)Occasional (27)Frequent (1)

Abnormal pigmentation of the oral mucosa	An abnormality of the pigmentation of the mucosa of the mouth.   Synonyms:Abnormal pigmentation of oral cavity; Abnormal pigmentation of oral mucous membrane; Abnormal pigmentation of the oral mucosa/gingivae	Very frequent
Abnormality of the gastrointestinal tract	An abnormality of the gastrointestinal tract.   Synonyms:Abnormality of the gastrointestinal tract; Abnormality of the GI tract	Very frequent
Gastrointestinal carcinoma	Synonyms:GI carcinoma	Very frequent
Macule	A flat, distinct, discolored area of skin less than 1 cm wide that does not involve any change in the thickness or texture of the skin.   Synonyms:Flat, discolored area of skin	Very frequent
Multiple lentigines	Presence of an unusually high number of lentigines (singular: lentigo), which are flat, tan to brown oval spots.	Very frequent