A 23 year boy with complaints of ulcers on tongue and cheek with crack on tongue. with ragged edjes since his childhood.Also had no appetite on morning since 6 Years. foul odour from mouth occasionally present. no family history of suchlike tongue. no bad habits and addiction. thermally chilly patient. desire spicy foods. diagnosis and treatment please

5 yr old child, having this lesion at corner of the lips since 3 yrs according to his mother now it sometimes pain too. everyone is prescribing vitmins to him but it has not subsided yet. what could be the diagnosis or DD

grooved tongue with mild burning sensation during eating. plz diagnose n treatment.

Complain since 10days,without any pain or itching diagnose it

Came across this interesting case study online where the patient had these painless lesions on the tongue. What is the condition called and what could be the possible etiology?