How is bladder cancer diagnosed?
Doctors use several tests to diagnose bladder cancer. One common method is a cystoscopy. In this procedure, a small tube with a camera is inserted into the urethra (the duct through which urine leaves the body) and slowly moved into the bladder.
A doctor can then examine the lining and take a sample, called a biopsy. Another method is a urine cytology. This test analyzes a urine sample to see if it contains tumor cells. Doctors also use a variety of imaging tests to examine the urinary tract.