作者从1987年1月至1988年12月底对422例无症状性镜下血尿进行膀胱镜,KUB、ivp及腹部超声检查,其中男性122例,女性300例,平均年龄55.7岁(为A组),另外,将1959年1月至1960年12月底仅作一般常规检查及膀胱镜检查的无症状性镜下血尿266例,男性92例,女性174例,平均年龄53.8岁(为B组),作为对照组。2组间施行膀胱镜检查例数,发现膀胱肿瘤例数以及A组中膀胱肿瘤初诊时ivp和尿脱落细胞检查进行比较。结果;B组266例中108例(41%)及(男性92例中37例,女性174例中74例);A组422例中367例(87%)作膀胱镜检查,(男性122例中101例,女性300例中266例),A组55例未作膀胱镜检查、其中 From January 1987 to the end of December 1988, 422 cases of asymptomatic microscopic hematuria were examined by cystoscopy, KUB, ivp and abdominal ultrasonography, including 122 males and 300 females, with an average age of 55.7 years (group A) In addition, from January 1959 to December 1960 at the end of December only for routine examination and cystoscopy asymptomatic microscopic hematuria 266 cases, 92 males and 174 females, mean age 53.8 years (for the B group) As a control group. The number of cystoscopy performed between the two groups, found that the number of bladder cancer and bladder cancer in group A newly diagnosed ivp and urine exfoliated cells were compared. Results: Of the 266 patients in group B, 108 (41%) were in 266 cases (37 in 92 males and 74 in 174 females) and 367 (87%) in group A were cystoscopy (122 males In 101 cases, 266 cases of female 300 cases), A group 55 cases without cystoscopy, of which