Yup get it checked, but I think the tip or top of the tongue is not a common site for this cancer. I have freaked out from things seen in my mouth only to find they were nothing to worry about.

Mark, 21 Year survivor, SCC right tonsil, 3 nodes positive, one with extra-capsular spread. I never asked what stage (would have scared me anyway) Right side tonsillectomy, radical neck dissection right side, maximum radiation to both sides, no chemo, no PEG, age 40 when diagnosed.