Home > Health Library > Prostate Biopsy
prostate gland biopsy is a test to remove small
samples of prostate tissue to be looked at under a microscope. The tissue samples taken are looked at for
For a prostate biopsy, a
thin needle is inserted through the
rectum (transrectal biopsy), through the
urethra, or through the area between the anus and
scrotum (perineum). A transrectal biopsy is the most common
A biopsy may be done when a
blood test shows a high level of
prostate-specific antigen (PSA). It may also be done after a
digital rectal examination finds an abnormal prostate
or a lump.
biopsy is done to find out:
Tell your doctor if you:
Be sure to tell your doctor about all the medicines you take, even over-the-counter ones.
You will be asked to sign a consent form that says you understand the risks of the test and agree to have it done.
Talk to your doctor about any concerns you have regarding the need for the
biopsy. Ask about its risks, how it will be done, and what the results will mean. To help
you understand the importance of the biopsy, fill out the
medical test information form(What is a PDF document?).
If this test is done under
local anesthesia through the area between the anus and
scrotum (perineum), you don't have to do anything to prepare.
the biopsy is done through the rectum, you may need to have an
enema before the test.
If the biopsy is
general anesthesia, your doctor will tell you how soon
before surgery to stop eating and drinking. Follow the instructions exactly, or your surgery may be canceled. If your doctor has instructed you to take your medicines on the day of the surgery, please do so using only a sip of water.
Before the biopsy, an
intravenous line (IV) is inserted in your arm. You will get a
sedative medicine about an hour before the
A prostate biopsy is done by a doctor who
specializes in men's genital and urinary problems (urologist). It can be done in
the doctor's office, a day surgery clinic, or a hospital operating room.
Before your biopsy, you may be given
antibiotics to prevent infection. You may be asked to
take off all of your clothes and put on a hospital gown.
positions are possible for this method. You may be asked to kneel, lie on your
side, or lie on your back with your feet resting in stirrups. Your doctor may
inject a local anesthetic around the prostate gland before the sample is
Transrectal ultrasound is often used to
guide the needle to the correct spot. A prostate biopsy is usually
done with a spring-loaded needle. The needle quickly enters the prostate gland
and removes a tissue sample. Between 6 and 12 samples are taken from different
areas of the prostate.
The biopsy can also be done with a needle
guide attached to your doctor's finger. He or she inserts the finger into your
rectum. Then the needle slides along the guide, through the wall of the
rectum, and into the prostate gland. The needle is turned to collect a tissue
sample and then pulled out.
A transrectal biopsy takes about 30
this method, you will lie on your back. You feet will rest in stirrups.
local anesthesia may be used.
scope (cystoscope) is inserted into your urethra. It allows
your doctor to look directly at the prostate gland. A cutting loop is passed
through the cystoscope to remove small pieces of prostate tissue.
This type of biopsy usually takes about 30 to 45 minutes.
Transperineal biopsy is not done as often as the other two types. You will lie on an exam table either on your side or
on your back with your knees bent. General or local anesthesia may be
skin at the biopsy site is cleaned with a sterile solution. The area
around it is covered with sterile cloth. Your doctor will wear gloves.
It is very important that you do not touch this area.
Transrectal ultrasound is generally used to
guide the needle to the correct spot.
A small cut is made in your perineum. Your doctor
inserts a finger into the rectum to hold the prostate gland. He or she will then insert
the needle through the cut and into the prostate gland. To collect a
sample of tissue, the needle is gently turned and then pulled out. Biopsy
samples may be taken from several areas of the prostate. Pressure is applied to
stop the bleeding. A small bandage is placed over the cut. The biopsy
usually takes about 15 to 30 minutes.
You may feel a slight sting when you
get a shot of medicine to numb your skin. You may feel a dull
pressure as the needle is inserted. For a transrectal biopsy, you may
feel pressure in the rectum while the ultrasound probe or guiding finger is in
place. You also may feel a brief, sharp pain as the needle is inserted
into the prostate gland. Usually several samples are collected.
After the biopsy, you will be asked to avoid activity
for about 4 hours. You may have mild pain in your pelvic area and blood in your
urine for up to 5 days. Also, you may have a change in color of your
semen for up to 1 month after the biopsy. If you had
a transrectal biopsy, you may have a small amount of bleeding from your
rectum for 2 to 3 days after the biopsy.
If you have a
transurethral biopsy, you may have a urinary catheter in place for a few hours
after the biopsy. You also may need to take an antibiotic medicine for
several days after the biopsy.
If you have a general anesthetic,
you will be in a recovery room for a few hours after the biopsy. You will need
someone to drive you home when you are released. When you get home, your
muscles may ache. You may feel tired for the rest of the day.
A prostate biopsy has a slight risk of causing
problems such as:
Call your doctor right away if
prostate gland biopsy is a test to remove small
samples of prostate tissue to be looked at under a microscope. Results are
usually ready within 10 days.
The prostate gland tissue
samples look normal under the microscope. There are no signs of infection or
Cancer cells or signs of
infection are found.
There are signs of an abnormal
noncancerous enlargement of the prostate gland (benign prostatic hyperplasia, or BPH),
If the test finds prostate cancer cells, a grade (Gleason score) will be given. Your doctor will discuss this with you. The
Gleason score is a tool for predicting how fast-growing the cancer
The results of the test may not be helpful if not enough biopsy tissue was taken to make a diagnosis.
Other Works Consulted
Loeb S, Carter HB (2012). Early detection, diagnosis, and staging of prostate cancer. In AJ Wein et al., eds., Campbell-Walsh Urology, 10th ed., vol. 3, pp. 2763–2770. Philadelphia: Saunders.
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis:
Fischbach FT, Dunning MB III, eds. (2009).
Manual of Laboratory and Diagnostic Tests, 8th ed.
Philadelphia: Lippincott Williams and Wilkins.
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.
Zelefsky MJ, et al. (2011). Cancer of the prostate. In VT DeVita Jr et al., eds., DeVita, Hellman and Rosenberg's Cancer: Principles and Practice of Oncology, 9th ed., pp. 1220–1271. Philadelphia: Lippincott Williams and Wilkins.
ByHealthwise StaffPrimary Medical ReviewerE. Gregory Thompson, MD - Internal MedicineSpecialist Medical ReviewerChristopher G. Wood, MD, FACS - Urology, Oncology
Current as ofFebruary 17, 2015
Current as of:
February 17, 2015
E. Gregory Thompson, MD - Internal Medicine & Christopher G. Wood, MD, FACS - Urology, Oncology
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