Sians examination shows the tympanic membrance is thick red, and dull. If rupture has occurred, pus and the perforation may be seen conductive hearing loss there is usually pain during pressure over the mastoid antrumSigns  examination shows the tympanic membrance is thick, red, and dull. If rupture has occurred, pus and the perforation may be seen.  conductive hearing loss.  there is usually pain during pressure over the mastoid antrum