Health encyclopaedia 健康百科全书

Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单

Causes of Perforated eardrum原因鼓膜穿孔

The most common cause of perforation is otitis media.最常见的原因是穿孔性中耳炎。 In this condition, the pressure of pus and the inflammation of the eardrum may destroy a small area of drum tissue and create a hole through which the pus can drain to the outside.在这种情况下，压力的脓和炎症的鼓膜可能摧毁一个小面积的鼓组织和创造一个洞，通过它可以脓流失向外界。

The drum may also become perforated as a result of direct or indirect injury, such as from an explosion, a fracture of the base of the skull, a slap on the ear or a poke from an object.鼓也有可能成为穿孔，由于直接或间接损伤，如从一爆炸，断裂的基础上的头骨，一打就耳朵或一戳，从一个对象。 Sometimes perforation may result from sudden changes in the external air pressure (barotrauma), or from high water pressure during diving.有时穿孔可能造成突然的变化，在外部空气压力（ barotrauma ） ，或从高水位的压力，在潜水。

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