The bladder is an empty organ, which stores urine created by the kidneys. Urine passes from every kidney into the bladder through a tube called a ureter. An external layer of muscle encompasses the internal covering of the bladder. At the point when the bladder is full, these muscles contract to cast out urine through the bladder outlet, the urethra.
The bladder is lined with cells called transitional cells. The greater part of bladder tumors emerge from these phones and are called transitional cell carcinoma (TCC). TCC is a sort of tumor and speaks to about 90% of bladder tumors. Different types of bladder growth incorporate squamous cell carcinoma and adenocarcinoma. There are additionally considerate (non-harmful) tumors of the bladder, which by and large don't return after they are evacuated.