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外耳的畸形缺损,临床上并不多见,可以由先天性和后天性的原因造成。前者一般在胚胎发育期由第一和第二鳃弓发育异常所引起。可表现为位置、大小和形态各方面的异常。重者常表现为无耳或小耳畸形,仅有零星而不规则的突起,无正常耳廓形态可辨,常伴有外耳道或中耳畸形。后天者可因某些疾病,烧伤和各种外伤造成。这不仅影响容貌,也影响听力,使患者在精神上和生理上隐藏着深重的痛苦,女性耳廓畸形可借鬓发掩盖而不手术。男性者要求迫切。外耳,
Deformity of the outer ear defect, clinically rare, can be caused by congenital and acquired causes. The former is generally caused by abnormalities in the development of the first and second branchial arch during embryonic development. Can be expressed as the location, size and morphology of all aspects of the exception. Severe cases often showed no ear or small ear deformity, only sporadic and irregular protrusions, no normal pinna morphology discernible, often accompanied by external auditory canal or middle ear deformity. Acquired people may be due to certain diseases, burns and various trauma caused. This not only affects the appearance, but also affect hearing, so that patients in the mental and physical hidden deep pain, female auricular deformity can be covered by hair without surgery. Men are demanding. external ear,