膀胱癌是男性第四位常见恶性肿瘤 ,女性第八位常见恶性肿瘤[1] 。 70 %以上膀胱癌患者首诊时为浅表性癌 (Ｔ1,Ｔａ ,Ｔｉｓ) [2 ] 。目前处理膀胱癌的方法 :浅表性者给予经尿道电切治疗 ,浸润期者 (Ｔ2以上 )给予膀胱切除治疗 ,联合放化疗治疗。但膀胱癌首次外科治疗后复发率高 Bladder cancer is the fourth most common malignancy in men and the eighth most common malignancy in women [1]. More than 70% of bladder cancer patients first superficial cancer (T1, Ta, Tis) [2]. The current treatment of bladder cancer: superficial were given transurethral resection, infiltration (T2 above) given cystectomy, combined with radiotherapy and chemotherapy. However, bladder cancer after the first surgical treatment of high recurrence rate