Transrectal Ultrasound and biopsy of prostate

What is transrectal ultrasound (TRUS) and biopsy?

TRUS is a test which uses ultrasound to look at the prostate which is a doughnut shaped gland lying beneath the bladder. If necessary, a biopsy can be taken at the same time where several small pieces of tissue are removed for further examination with a very fine needle.

How do I prepare for the test?

You need to try to make sure that your bowels have been opened before the test is done.

Please Note

If you take Warfarin or Clopidogrel (Plavix) please contact the Planned Investigation Unit or Urology Department (see contact details over page) 7 days before your admission.

How is it done?

You will be given some antibiotic tablets before the test is done to help prevent infection afterwards. The doctor will insert an ultrasound probe into your back passage (rectum) beside the prostate gland. This is a small instrument, which uses sound waves to show an image of the prostate and may show abnormalities in the gland. You may find this part of the test slightly uncomfortable. The probe is also used as a guide to take some small samples of tissue (biopsy) with a fine needle, from the gland. At the end of the test, the doctor will put an antibiotic suppository into the back passage.

What should I expect after the test?

Before you leave the ward you will be asked to pass 2 urine samples into a bottle, so the ward staff can check for signs of bleeding from the colour of your urine. The doctor will prescribe a 3 day course of antibiotics (Levofloxacillin 250mg) for you to take once a day. These tablets help to prevent infection after the scan so it is very important that you take them all.

You may feel some dull discomfort in your bottom and there may be a small amount of blood in your urine, sperm and bowel motions. This can last up to 2-3 weeks after the test. This is a normal and should be cleared up by drinking approximately 12 cups of fluid a day for the next few days.

Any pain or discomfort can be treated with simple painkillers such as paracetamol.
If you get any pain or burning when you pass urine, you will need to see your GP as you may have a urine infection. You should also report to your GP immediately if you have any severe bleeding, become shivery, feel unwell or have a fever.

When can I get back to my normal routine?

It is important that you don’t do any very strenuous activity for 24 hours after the procedure. Other than that there are no real restrictions and you should be able to get back to your normal activities over the next few days, as you feel able.