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通过对52例外伤性鼓膜穿孔法医临床学鉴定资料分析表明:伤者男女比为4.8/1,年龄16～35岁占82%,以无业人员、个体户为主。致伤以掌击耳部为主(75%),拳击耳颞次之(13.45%)。穿孔部位主要在鼓膜中央和前下部(96.15%),形态多不规则。穿孔后症状以耳聋、耳鸣为主,部分可有耳道出血。掌击耳部一般只形成单纯鼓膜穿孔,听力下降21～30dB,属传音性;拳足及其它钝器击耳颞部致鼓膜穿孔,多含并足骨链损伤及迷路震荡,听力下降在41dB 以上,若继发感染,听力下降可达91dB 以上,而成重伤。
Through the 52 cases of traumatic tympanic membrane perforation forensic clinical identification data analysis showed that: the injured male to female ratio was 4.8 / 1, aged 16 to 35 years accounted for 82%, mainly unemployed individuals and self-employed. Injuries to the palm-based ears (75%), followed by boxing ears (13.45%). Perforation site is mainly in the tympanic membrane center and the former lower part (96.15%), many irregular shape. Perforation symptoms deafness, tinnitus-based, some may have bleeding in the ear canal. Generally speaking, only a simple tympanic membrane perforation is formed in the ears of the hand. The hearing loss is reduced by 21-30 dB, which belongs to the acoustic properties. The fistula and other blunt instruments cause the perforation of the tympanic membrane in the ear and temple, 41dB or more, if secondary infection, hearing loss can reach 91dB above, and become seriously injured.