Recently, the Department of Urology successfully reconstructed the bladder for a patient who had undergone “radical total cystectomy” and now the patient has been discharged from the hospital and can urinate as a healthy person. The patient is a 54-year-old male who underwent “total radical cystectomy + ileal cystostomy on the right side of the abdominal wall” for “invasive bladder cancer” in a tertiary hospital in China four years ago. The patient’s urinary tract system lost its normal anatomy after surgery, and urination was not self-perceived and not under human control. Although the surgery successfully removed the tumor and saved the patient’s life, the loss of normal body form and function was a great psychological blow to the patient, who was in extreme pain and wanted to remove the urine bag and restore normal urination. After many inquiries, the patient came to our hospital. Director Li Shengwen led the urology team to successfully perform “ileocolic cystectomy” after thorough preparation, and the patient recovered well after the operation. Bladder cancer is a common tumor in the urinary system. For patients with “invasive bladder cancer”, they need to perform “radical total cystectomy”, which requires “urinary diversion” while removing the bladder. This is to find or recreate a pathway for the urine to flow out of the body. Currently, the more common procedures for urinary diversion include “bilateral ureteral skin stoma, ileal cystostomy, and colonic in situ neobladder”. The first two procedures are relatively less difficult to perform and are more frequently used. If we were to perform a second in situ colonic cystectomy in a patient who has already undergone the second procedure, it would be extremely difficult and unprecedented, and has not been reported in the national and international literature.