Brushing your teeth hard is not a risk factor for developing oral cancer. But you are wise to have someone look at it since it has been around more than a couple of weeks. Remember that the vast number of things like this that dentists see every day in people's mouths are benign and not serious. Keep that thought in your mind until you get a professional opinion.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.