<s>[INST] hi dr i have aproblem ihave jyst felt that my mastoid process enlargebut d its cosistency is hard like abone its uinilateral enlargement ,no pain,no redness nor inflamation,my hearing is normal but im so warry of that enlargement .. ineed a quick answer please :( [/INST] could be middle ear infection or jaw dislocation check middle ear infection firstyou should check both possibilitys Good Luck </s>