I have a red flat spot on tongue, that looks irritated. I saw it after eating hot wings since it started to burn. My dentist saw black areas using the velscope but did not think it was cancer. I had to get my wisdom teeth pulled from my orthodontist and I told him about my tongue and he said it was not cancer by just looking at it. Nobody thinks it s anything to worry about but I went to the University of Ky dental and he said the same thing but he asked if I wanted a biopsy and I said yes. Results not yet in but I have noticed under the incision of the side of my tongue I feel a lump. I guess that s the right terminology. I can feel it with my fingers. Is this normal after a biopsy..?