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Fav十万个为什么
耳朵为什么会流脓？
耳朵流脓通常是由于中耳炎、外耳道炎或耳部外伤感染等引起的，具体如下：
1、中耳炎：中耳炎是耳朵流脓最常见的原因之一。当细菌或病毒感染中耳时，会引起中耳黏膜的炎症，导致中耳积液。如果炎症严重，积液可能会变成脓液，并通过鼓膜上的小孔或穿孔流出到耳道，从而形成耳朵流脓。
2、外耳道炎：外耳道炎，也称为“游泳耳”，是外耳道皮肤的炎症。这种炎症通常是由细菌或真菌感染引起的，尤其是在外耳道进水后。外耳道炎会导致外耳道红肿、疼痛，并可能产生脓液，从而引起耳朵流脓。
3、耳部外伤感染：耳部的外伤，如耳膜破裂或耳道内的异物，也可能导致感染。这些外伤会破坏耳部的自然屏障，使细菌更容易侵入并引起感染。感染后，耳道或中耳可能会产生脓液，导致耳朵流脓。
总结：耳朵流脓通常是由于中耳炎、外耳道炎或耳部外伤感染等引起的。
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