Abstract: THE RELATIONSHIP BETWEEN THE BLOOD LEVEL OF CHOLIC ACID AND DIFFERENT DISEASESWen Yaoping（shanxi Medical College，Taiyuan 030001）Huang Likun；Wang Dajun（The Pelple＇s Hospital of Shanxi Province，Taiyuan 030012）ABSTRACT The increased fasting conjugated serum bile acid（CCA）in 453 cases of miscellaneous diseaseswere analysed from Dec．，1991 to Feb．，1992．According to the increaed level of CCA it can be divided into three groups（group A：300－600 μg／dl，group B： 600－1500 μg／dl，group C：＞1500μg／dl）．，The normal limit is less then 290 μg／dl．Comparing with the CCA level of different groupsand the diagnostic results of hepato－biliary diseases，the coincidence rates are 57．6％for group A，79．5％for group B and 89．3％for group C respectively．A significant difference was found betweengroup A and other two groups（P＜0．01）．No marked difference was found between B and C．The results suggested that there were no exact diagnostic significance for hepato－biliary diseases，unless thelevel of CCA was 2 times as large as noaml limit．Key words RIA CCA hepatic－function hepato－biliary diseases．