Abstract
ISONO examine on the etiological factors which made chronicity in supprative otitis media. That is, some bacteria (staphylococci, proteus bacilli and diphtheroid bacilli. And mixed infection of these may be of meaningfull.), some pathological conditions of nose, pharynx or nasopharynx (such as chronic Sinus infection or adenoid) and most severely involved portion in the case of acute otitis media were noticed.
