Cystoscopy requires patients with indications. The specific operations are as follows: 1. Cystoscopy requires the selection of cystoscope sheath and mirror of appropriate caliber and angle according to the patient’s condition; 2. Strictly follow the aseptic operation: the mirror body needs to be lubricated and disinfected; preoperative area disinfection; 3. Enter the mirror gently: so as not to damage the urethra or even the bladder; 4. Enter the mirror along the physiological curvature of the urethra: observe in regions, including the urethra, bladder, ureter, etc., to ensure that all parts of the bladder are 5. linguistic description of the examination results and diagnosis.