膀胱癌在泌尿生殖系肿瘤的发生率较高，由于其生物学特性，使得手术、化疗和化疗三大传统疗法的疗效非常有限，经尿道切除的方法虽然对Ｔａ、ＴＩ期表浅性肿瘤有较好的疗效，能有效地切除肉眼可见的肿瘤，但仍无法保证去除所有的肿瘤细胞，表浅性膀胱癌经尿道切除后的高复发率 Bladder cancer in the high incidence of genitourinary tumors, due to its biological characteristics, making surgery, chemotherapy and chemotherapy three traditional therapies have very limited efficacy, although transurethral resection of Ta, TI superficial tumors have Better curative effect, can effectively remove the macroscopic tumor, but still can not guarantee to remove all the tumor cells, superficial bladder cancer after transurethral resection of high recurrence rate