Biting my lip/cheek?

My sister used to do that. She chewed/chews a lot of gum to stop the habit

I do this excessively when anxious. You should stop as much as possible however. This can cause cancer...you are causing your cells to have to constantly rebuild the tissues in your mouth. Cancer begins when these cells are replicated so often that the new cells are cancerous. Do yourself a favor and either stop the habit, or stop what triggers itz

I've done it since I was a little kid. I do it just randomly and never really notice. Chewing gum and sunflower seeds help from doing it. Once I heard about causing cancer it scared the hell out of me but I'll probably never be able to stop. Oh well lol.

I do it all the time, especially when I'm thinking. o.o

I have been doing this sense I was a young girl, my friends all give me a hard time about it when they notice me chewing..its kinda nice to know im not the only one with this odd habbit.. :)

I bite mine as well. I was at the dentist though, and he saw, I guess, and asked me if I bite the inside of my cheeks. I said yes and he told me that I need to stop the habit. I've been trying hard to by chewing gum and chewy candies, because my dentist told me that biting your cheeks can cause cancer, infection, and other things. Mouths are full of bacteria, especially if you're breaking the skin, you should stop. It's really hard to stop habits, but better to stop now before matters get worse!

I bite mine all the time especially when i'm nervous so dont worry :) x

doesn't seem.