Bladder cancer may recur in 1~2 weeks or within half a year after surgery, or it may be 4~5 years, and there are also patients who do not recur for life, the recurrence time varies from person to person. The recurrence rate of bladder cancer after surgery is high, but the time of recurrence varies from person to person, some patients recur in 1 to 2 weeks, while some recur in 4 to 5 years or even longer, and there are also patients who do not recur for life. In general, the recurrence rate is higher in patients with late clinical stage of tumor, poor tissue type, and no standardized treatment after surgery. The treatment of bladder cancer is mainly based on surgical treatment, and the commonly used surgical modalities include transurethral cystectomy of bladder tumor, radical cystectomy, etc. Postoperative adjuvant chemotherapy, chemotherapy and immunotherapy are also needed. The choice of treatment needs to be worked out with the surgeon according to the individual’s specific situation. It is also important to have standardized postoperative treatment and monitoring to be able to monitor recurrence and treat it early.