Endoscopic ear surgery is widely applied in the treatment of outer ear and middle ear disorders. This method can be successfully used for a wide range of conditions, from earwax (cerumen) removal to more complex pathologies.

The main conditions for which endoscopic ear surgery is performed include:
* Eardrum tears or perforations
* Otitis media (middle ear inflammations)
* Tube insertions in the treatment of effusive otitis media, common in children
* Presence of a mass behind the eardrum along with eardrum perforation
* Otosclerosis (calcification of the ear)
* Repair of dislocations or fractures of the middle ear ossicles
* Treatment of osteomas surrounding the ear canal
* Many other conditions such as inner ear nerve-derived tumors like cochlear nerve tumors

While microscopic surgical methods are generally preferred for inner ear surgeries, the endoscope can be effectively used as an auxiliary tool in such operations.