患者,男,42岁。于5年前因劳累出现无痛性血尿,而后常因劳累或性交后出现短暂间歇性血尿。近3日出现无病性全程肉眼血尿,尿色鲜红并有血块,致尿线中断及排尿困难而入院。查体:一般情况好。双肾区无叩击痛,膀胱轻度充盈,无压痛,未触及包块。尿常规:蛋白微量,红细胞满视野,白细胞0～1个/高倍。肾图正常,静脉肾盂造影未见异常。膀胱镜检:放出陈旧性血凝块约200毫升,用盐水反复冲洗后,见 Patient, male, 42 years old. 5 years ago due to fatigue painless hematuria, and often after a brief period of intermittent hematuria due to fatigue or sexual intercourse. Nearly three days of non-pathological gross hematuria, red urine and blood clots, resulting in urinary disruption and dysuria and admission. Physical examination: the general situation is good. No percussion pain in the renal area, mild filling of the bladder, no tenderness, no mass. Urine routine: protein trace, full field of red blood cells, white blood cells 0 to 1 / high. Kidney chart normal, no abnormal intravenous pyelography. Cystoscopy: emit old blood clots of about 200 ml, rinsed repeatedly with saline, see