There is no definite time interval for cystoscopy, and a second cystoscopy can be performed at any time, depending on the patient’s condition. Cystoscopy is minimally invasive and less traumatic. If you want to check the bleeding point in the bladder through cystoscopy, after the first cystoscopy, those who fail to identify the bleeding point can undergo the second cystoscopy at any time. In addition, bladder cancer patients need to have regular cystoscopy review after surgery, usually 3 months after transurethral cystectomy, after which the specific pattern of review should be combined with their own condition, such as high-risk patients are recommended to have cystoscopy every 3 months in the first 2 years after surgery, every 6 months starting from the 3rd year, and every year starting from the 5th year, until lifetime. If you need cystoscopy or review, please visit a regular hospital and consult your local doctor according to your specific condition.