Bladder cancer is currently staged using the 2017 UICC TNM staging (8th edition) criteria based on the depth of cancer infiltration into the bladder wall. Clinically, stage Tis, Ta and T1 tumors are called non-muscle invasive bladder cancer. above T2 is called muscle invasive bladder cancer. When a bladder tumor starts to proliferate, it mainly proliferates from the mucosa, and this condition rarely causes blood or lymphatic metastasis. And when the bladder tumor invades the muscle layer of the bladder, this condition may cause blood or lymphatic metastasis. For non-muscle invasive bladder cancer, the treatment is mainly transurethral cystectomy of bladder tumor with postoperative adjuvant chemotherapy, and the prognosis is generally better. While invasive bladder cancer generally requires radical cystectomy and comprehensive treatment such as radiotherapy, the prognosis is relatively poor. Once bladder tumor is found. You should seek medical treatment immediately and follow the doctor’s instruction to standardize the treatment.