Bladder biopsy is a procedure that involves removing a small piece of tissue from the bladder. The tissue is examined under a microscope.
Biopsy - bladder
How the Test is Performed
A bladder biopsy can be done as part of a cystoscopy (telescopic examination of the inside of the bladder). A small piece of tissue or the entire abnormal area is removed and sent to the lab to be tested if:
Abnormalities of the bladder are found during this exam
You must sign an informed consent form before you have a bladder biopsy. In most cases, you are asked to urinate just before the procedure. You may also be asked to take an antibiotic before the procedure.
For infants and children, the preparation you can provide for this test depends on your child's age, previous experiences, and level of trust. For general information regarding how you can prepare your child, see the following topics:
There may be slight discomfort as the cystoscope (a lighted instrument used to look at the bladder) is passed through your urethra into your bladder. You will feel discomfort that is similar to a strong urge to urinate when the fluid has filled your bladder.
You may feel a pinch during the biopsy. There may be a burning sensation when the blood vessels are sealed to stop bleeding (cauterized).
After the cystoscope is removed, your urethra may be sore. You may feel a burning sensation during urination for a day or two.
If the biopsy needs to be taken from a large area, you may need general or spinal anesthesia before the procedure.
Why the Test is Performed
This test is most often done to check for cancer of the bladder or urethra.
The bladder wall is smooth. The bladder is of a normal size, shape, and position. There are no blockages, growths, or stones.
What Abnormal Results Mean
The presence of cancer cells indicates bladder cancer. The type of cancer can be determined from the biopsy sample.