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Prostate needle biopsy is a test to look for prostate cancer. During the test, a thin, hollow needle is used to take small samples of tissue from the prostate. The samples are then tested in a lab.
Prepare as you have been told. In addition:
Tell your health care provider about all medicines you take. This includes herbs and other supplements. It also includes any blood thinners, such as warfarin, clopidogrel, or daily aspirin. You may need to stop taking some or all of them before the procedure.
You may be told to use a laxative, enemas, or both before the biopsy. This is to empty the colon and rectum of stool. Follow the instructions you are given.
Your health care provider may prescribe antibiotics before the procedure. If so, take these as directed.
All procedures have risks. The risks of this procedure include:
Rectal or urinary bleeding
Discomfort in the prostate area
Infection in the urinary tract or prostate
Infection in the bloodstream
The procedure is done in a health care provider’s office or a hospital. It takes about 15 minutes. You will be able to go home the same day. Transrectal ultrasound is often used during the procedure. This test uses sound waves to make images on a computer screen The images help the health care provider insert the needle in the correct place. During the biopsy:
If ultrasound will be used, you may be asked to drink water to fill your bladder.
You may lie on your side on an exam table.
The ultrasound transducer, which is about the size of a finger, is lubricated. It is then inserted into the rectum. This will feel like a prostate exam. The transducer is moved until the prostate can be seen in the ultrasound images.
To numb the biopsy area, local anesthetics may be injected.
Using the ultrasound images as a guide, the biopsy needle is inserted. It may be inserted through the rectum or through the skin between the scrotum and the anus (perineum).
The needle is used to take tissue samples from the prostate. About 12 samples are taken from different areas of the prostate. These samples are sent to a lab to be tested for cancer.
At first you may feel a little lightheaded. You can lie on the table until you feel able to stand. You can go home after the procedure. You can go back to your normal activities. You may have some blood in your urine or stool that day. This is normal. You may also notice blood in your semen for weeks or months after the biopsy. This is normal and not dangerous. Your health care provider can tell you more about what to expect.
You will see your health care provider for a follow-up visit. Depending on the biopsy results, you may be scheduled for more tests. If signs of cancer are found, you and your health care provider can discuss options for further testing.
Call the health care provider if you have any of the following:
Chest pain or trouble breathing (call 911)
A fever of 100.4°F (38°C) or higher
A feeling of weakness
Blood clots in your urine
Inability to urinate
Blood in the urine or stool that doesn’t go away after 48 hours
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