RAC3 and urinary bladder neoplasm: Second, by characterizing the expression of RAC3 with clinical case characteristics of bladder tumor patients, we found that the expression of RAC3 in patients was associated with smoking history, TNM stage, depth of infiltration, and degree of differentiation, and there was no significant correlation with age or gender, and that the expression of RAC3, TNM stage, depth of infiltration, and degree of differentiation were independent risk factors for the prognosis of bladder tumors.