In this report,C.trachomatis (Ct) and herpes simplex virusⅡ(HSV2) were detected by immunoprecipitation test and a polymerase chain reaction technique (PCR) from 1046 patients with nongonococcal urethritis (NGU). U.urealyticam (Uu),M.hominis (mh),Candida(Cd),and T.vaginalis (Tv)were isolated by the methods of cultivation from those patients.The results showed that positive rate of Ct was 12.04%(126/1046),Uu 14.24%(149/1046),112 for Cd(10.70%)、34 for Tv (3.25%)、32 for HSV2(3.05%)、21 for Mh(2.0%).Among 126 cases of Ct,78 were mixed infecti...