H73: Other disorders of tympanic membrane

H73.9: Disorder of tympanic membrane, unspecified

Sounds or tones from our environment reach our ears as sound waves. The auricle and the auditory canal route the sound waves through to the eardrum. The eardrum is a thin membrane. Behind the eardrum, the middle ear begins. The eardrum routes the sound waves on to the middle ear.

Your eardrum has changed. Your eardrum may have got thicker or harder, for example. When the eardrum changes, one’s hearing may be worse than usual.