How common is roof of mouth cancer in 22 y/o non smoker, drinker? oral surgeon said its an oral fibroma but its been there for a year. has not changed in size. very small size of nerd. just worried

Tobacco associated: You need to be tobacco free to be low risk. Chewing tobacco, pipes (Freud died from it), cigars are all risks. AND assuming tobacco free. Low risk. BUT scar tissue is a risk for the development of scar cancers and 2 of the small number of patients I've had die from cancers were with cancers in scar (lung, skin). BUT without any characteristics of cancer.....

Most likely benign: It would be easy to remove something like that to find out for sure but in general, if it’s not growing fast and is uniform in color it is probably harmless. Cancer tends to invade the surrounding tissue, is usually ulcerated or bleeds and feels hard like bone and is not firm or rubbery. Fibromas are very common and tend to be the result of injury from a sharp tooth or other trauma.