Ulcer on tongue lining since 2 months. please click link for picture. what could this be ? http://tinypic.com/view.php?pic=2ujozyh&s=5#.umtvqbbccp0

variety - see below: Tuberculosis, cancer, lupus, behcet syndrome can all produce persistent ulcers. Needs oral surgeon evaluation asap.

Tongue: If it's been two months since you first noticed it, please see your dentist for a definite diagnosis. Two months is long enough.

Tongue ulcer: There are many reasons for this lesion but 2 months? Seek out professional help immediately an oral surgeon would be best.