细菌性：脑脊液压力显著升高，性状白色浑浊，白细胞数成千上万，中性核细胞为主，糖含量低，蛋白质含量高，革兰染色培养（+）
病毒性：脑脊液压力不高或略高，性状无色透明，白细胞数正常或略高，淋巴细胞为主，糖含量正常，蛋白质含量正常或略高，病毒PCR（+）
结核性：脑脊液压力显著升高，性状为淡黄，白细胞数数十到数百，淋巴细胞为主，糖含量低，蛋白质含量显著高，抗酸染色（+）
隐球菌性：脑脊液压力显著升高，形状为无色透明，白细胞数数十到数百，淋巴细胞为主，糖含量显著低，蛋白质含量中等高，墨汁染色（+）

Bacterial: The pressure of the cerebrospinal fluid is significantly increased, the traits are white and turbid, the number of white blood cells is tens of thousands, mainly neutrophils, the sugar content is low, the protein content is high, Gram staining culture (+)

Viral: The pressure of cerebrospinal fluid is not high or slightly higher, the character is colorless and transparent, the number of white blood cells is normal or slightly higher, lymphocytes are mainly, the sugar content is normal, the protein content is normal or slightly higher, viral PCR (+)

Tuberculosis: the pressure of cerebrospinal fluid is significantly increased, the character is light yellow, the number of white blood cells is tens to hundreds, mainly lymphocytes, the sugar content is low, the protein content is significantly high, acid-fast staining (+)

Cryptococcal: the pressure of the cerebrospinal fluid is significantly increased, the shape is colorless and transparent, the number of white blood cells is tens to hundreds, mainly lymphocytes, the sugar content is significantly low, the protein content is moderately high, ink staining (+)