The article presents a case of the middle ear obliteration in a 45 years old female patient that complained of a long-term continuous otorrhea and underwent 4 surgeries for congenital middle ear development abnormality (microtia, external auditory canal (EAC) atresia), paraauricular fistula and stage 3 chronic sensoneural hearing loss. The work provides detailed description of the course of interference that resulted in the fact, that no complaints of the operated ear have been observed for 12 months. Therefore, the fat tissue obliteration of tympanic cavity may be used as the method of choice in case of treatment of post-surgical cavity without result in patients with the chronic suppurative otitis media in the cases where reconstructive hearing improvement surgery is impossible or is not indicated. The latter is observed in the patients with the expressed sensoneural hearing loss.