我院于1984～1989年收治化脑122例,有9例为混合菌性脑膜炎。诊断依据:(1)首次CSF培养有二种或二种以上病菌;(2)同一病人在不同时间内CSF培养出二种菌;(3)CSF涂片检出二种菌,但培养仅有一种。结合临床特点,具备(1)条可确诊,本组占3例;(2)、(3)项可临床拟诊,应及时治疗不可视为污染而延误病情,本组占5例;另1例为侧脑室 In our hospital from 1984 to 1989 122 cases of brain damage, 9 cases of mixed meningitis. Diagnosis is based on (1) the first CSF culture has two or more than two kinds of bacteria; (2) the same patient at different times CSF cultured two kinds of bacteria; (3) CSF smear two kinds of bacteria, but only one Species. Combined with clinical features, with (1) can be diagnosed, the group accounted for 3 cases; (2), (3) can clinically diagnosed, should be promptly treated can not be considered as contamination and delay the disease, the group accounted for 5 cases; the other 1 Cases of lateral ventricle