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The author observed 68 cases of the tympanic membrane perforation, who visited at the Department of Otolaryngology of Capital Armed Forces General Hospital in 1983. The results obtained were as follows; 1. The symptoms were hearing loss 56 cases(82.4%), tinnitus 50 cases(73.5%), otalgia 48 cases(70.6%), autophonia 40 cases (58.8%) in order. 2. The duration from tympanic membrane perforation to confirmation at OPD was usually within 3 days(44 cases, 64.8%). 3. The side of tympanic membrane perforated ear was usually left side in 50 cases(73.5%). 4. The location of tympanic membrane perforation was usually seen in the anteroinferior quadrant(28 cases, 41.2%) and intermediate portion (36 cases, 53.0%), and the shape of tympanic membrane perforation usually showed triangular shape(43 cases, 63.2%), and the triangular shape was about 25.5 ㏈ in air-bone gap. 5. The air-bone gap after tympanic membrane perforation was usually about 11-20 ㏈(30cases, 44.1%). 6. As nonhealing 5 cases of nonhealing tympanic membrane perforation 6 cases (8.8%) occurred within the patients of the nasal problem (12 cases) in relationship between Eustachian tube and the neighboring organs, the Eustachian tube was influenced by the diseases of the neighboring organs with symptoms (maxillary sinus and intranasal structures), and the function of Eustachian tube was disturbed, thereby the healing of tympanic membrane perforation was delayed. 7. In 44 cases visited at out patient department in 3rd day from tympanic membrane perforation, it usually occurred the transformation for the shape of tympanic membrane perforation that the triangular shape was transformed to irregular round, and the irregular round was changed to round. And the healing duration of tympanic membrane perforation was mostly closed in 10 weeks.
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