Table 2. Definition of common tympanostomy tube complications.

Complication	Definition
Tube otorrhea	Abnormal discharge from ear after placement of tympanostomy tube.
Persistent perforation	Ruptured tympanic membrane which does not heal on its own.
Tube clogging	Blocking of tympanostomy tube by wax, blood, ear discharge from tube otorrhea, or foreign body.
Tympanic membrane atrophy	Decrease in elastic and fibrous fibres of lamina propria, leading to thin and unelastic tympanic membrane.
Myringosclerosis	Pathological condition of tympanic membrane leading to sclerotic plaques and hyaline degeneration.
Tympanosclerosis	Calcification and hardening of tissue of tympanic membrane as well as middle ear.