One of the tests used to rule out prostate cancer is a prostate ultrasound. This test is used to examine the prostate gland for size and shape and is also used to help guide a biopsy of the prostate and certain types of radiation therapy.
An ultrasound is a test that uses high-frequency sound waves to view structures within the body. These sound waves bounce off of tissues and return to the equipment, which translates the sound waves into images of the part of the body being monitored. An ultrasound of the prostate is sometimes referred to as a TRUS procedure (TRUS = Trans Rectal Ultrasound of the Prostate).
You may be given some instructions to take medications or use an enema prior to the procedure so that the bowels are clear. Your doctor may also prescribe an antibiotic to be taken before and after the procedure. You may also be asked to drink a few glasses of water just before the test. Make sure that your doctor is aware of all medications you are taking beforehand.
During the prostate ultrasound, the doctor will ask you to lie on your side and then insert a wand-like instrument called a transducer into the rectum. The test feels similar to a digital rectal exam.
You will be able to go home immediately after the exam. If a biopsy is taken, it is sent to a pathologist to examine it under a microscope. You will be given your results at the next appointment with your doctor. You may experience some mild discomfort after the test and you might see some small amounts of blood in your urine or ejaculation. If any of these symptoms are severe or if you cannot urinate (pee), contact your doctor immediately.