1.)is this mucocele?white translucent ,no pain,but some buring sensation,reoccurring every 3rd day from last two weeks. i went to an oral surgeon ,he examine it and said its a mucocele and have to remove surgically. 2.)does mucocele on lower lip bleed if suddenly bite accidentally? 3.)can mucocele turn into cancer? 4.) does it compulsory require biopsy for confirmation? before or after removed? here are the pictures of before and after rupture :