I hve this pin point red mole like inside my mouth on cheek wall, its only one, and not painful. what could it be? could it be dangerous?

Yes/No: It is difficult to answer your question without knowing more about the lesion. You need to know about the history of the area . Is this a newly developed lesion, how long has it been there, is it growing larger and so on. You need to see a dentist who can farther evaluate the area.

It seems like a: Small blood vessel which is usually benign. I can't tell for sure. If it gets bigger or worse, see your dr for an accurate diagnosis. God bless you!