Urothelial carcinoma also known as Transitional cell carcinoma (TCC) is the cancer of urinary system. It affects bladder, ureter, urethra, and urachus. In bladder cancer tumor strts from linnings of bladder i.e transitional epithelium. Bladder cancer may be non invasive which are not spread in inner deep layers or invasive which grows upto deep layers of bladder hence difficult to treat.