例1:男,4岁,因不能排尿12小时急诊入院,入院前3个月起经常排尿困难,且有尿流中断现象,曾多次透视未发现膀胱区结石。入院检查膀肮边缘不清,下腹、阴茎、阴囊及会阴轻度肿胀,压痛,试插胶导尿管至球部尿道受阻,后改用小号金属导尿管导出淡黄色小便150毫升,在金属导尿 Example 1: Male, 4 years old, admitted to an emergency hospital for urinary incontinence for 12 hours and had frequent urination problems 3 months prior to admission. Urinary flow interruption was observed. Multiple urinary bladder stones were not seen. Admitted to check the bladder unclear edge, lower abdomen, penis, scrotum and mild swelling of the perineum, tenderness, test inserted into the urethral catheter urethral obstruction, then use the small metal catheter to export light yellow urine 150 ml, Metal catheterization