A biopsy is a small piece (called a
sample) of cells and tissue. A bladder biopsy is usually done during cystoscopy. If your
healthcare provider sees something that looks like cancer while doing the cystoscopy, he
or she will remove a small sample of that tissue.
Any removed tissue is sent to a
special doctor called a pathologist. This doctor looks at the tissue under a microscope
for signs of cancer.
If there is cancer, the biopsy can
help tell whether the cancer is just on the surface of the bladder or if it’s gone into
the deeper layers of the bladder wall.
It normally takes several days for
biopsy results to come back. A biopsy is the only sure way to know if you have cancer
and what kind of cancer it is.