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多种损伤可以发生软骨炎,最常见的是烧伤和化学伤。其他包括血肿形成、乳突手术、人咬伤、深的磨擦伤、单纯裂伤、外耳炎及耳垂穿透伤等。炎症开始时常局限,但很快发展到全耳。软骨炎发生发展的机制尚不清楚,感染起了重要的作用。细菌学检查表明,95%的软骨炎主要菌种为绿脓杆菌。金葡菌及变形杆菌属第二位,常与绿脓杆菌混合生长。组织学检查可见化脓区、软骨腐蚀及嗜中性白细胞浸润。
A variety of injuries can occur chondritis, the most common are burns and chemical injuries. Others include hematoma formation, mastoid surgery, human bites, deep abrasions, simple lacerations, otitis externa and earlobe penetrating injuries. Inflammation is often limited at first, but soon develops to the entire ear. The mechanism of occurrence and development of chondritis is not clear, and infection plays an important role. Bacteriological examination showed that 95% of the main strains of chondritis are Pseudomonas aeruginosa. Staphylococcus aureus and Proteus is the second, often mixed with Pseudomonas aeruginosa growth. Histological examination showed pus area, cartilage erosion and neutrophil infiltration.