Understanding Your TRUS Biopsy: A Straightforward Guide for Sri Lankan Men

If your urologist (kidney and urinary specialist doctor) has asked you to undergo a TRUS biopsy, you might be feeling anxious. This is entirely normal. Medical procedures involving private parts of the body are rarely talked about openly in Sri Lanka, which creates unnecessary fear.

Let us break down exactly what this test is, why you need it, and what happens on the day of the procedure using clear facts.

What is a TRUS Biopsy?

TRUS stands for Transrectal Ultrasound.

• Transrectal means the test is done through the back passage (rectum).
• Ultrasound means using sound waves to see a clear picture of your organs on a screen, just like doctors use to check pregnant mothers.
• Biopsy means taking a few tiny tissue samples using a thin needle to test them in a laboratory.

The prostate is a small, walnut-sized gland that sits right below the bladder in men. Because it is located right next to the rectum, going through the back passage is the most accurate way for the doctor to see it and test it.

As shown in the medical diagram above, the doctor uses a thin ultrasound probe to see the exact shape of your prostate. A tiny, specialized needle then collects very small samples from different areas of the gland.

Source: NCI

Why Has the Doctor Ordered This Test?

Your doctor will usually recommend a TRUS biopsy if initial checkups suggest a possible issue with your prostate. This is generally triggered by two things:

1. A high PSA level: PSA (Prostate-Specific Antigen) is a simple blood test. If your score is elevated, it means your prostate is irritated or enlarged.
2. An abnormal DRE: This is a Digital Rectal Examination, where the doctor gently uses a gloved finger to feel the size and hardness of your prostate through your back passage.

An elevated PSA blood test or an enlarged prostate does not automatically mean you have cancer. Non-cancerous conditions common in older men, like an enlarged prostate (BPH) or a prostate infection (prostatitis), also cause high PSA levels. A biopsy is simply the only definitive way to confirm exactly what is causing the changes.

What Happens on the Day of the Procedure?

The entire procedure takes about 15 to 20 minutes. It is usually done as an outpatient procedure in the hospital, meaning you can go home the very same day.

1. Antibiotics and Preparation: Before the procedure. You will be given antibiotics to take before the test to prevent infections. The clinic will also ask you to ensure your bowels are empty before coming in.

2. Positioning and Numbing: Minutes 1 to 5. You will lie on your side on the examination bed with your knees pulled up toward your chest. The doctor will gently insert the lubricated ultrasound probe into the back passage. They will then inject a local anesthetic (numbing medicine) next to the prostate so you won’t feel sharp pain.

3. Taking the Samples: Minutes 5 to 15. Using the ultrasound image as a guide, the doctor will use a spring-loaded needle to take 10 to 12 tiny tissue cores from different parts of the prostate. Each sample takes a fraction of a second. You will hear a quick “clicking” sound each time a sample is taken.

4. Rest and Discharge: After the procedure. You will rest for a short period at the clinic. The medical team will check that you can pass urine normally before letting you head home.

Does it hurt?

The local numbing injection keeps you from feeling severe pain. Most men describe the sensation as an uncomfortable pressure or a dull ache when the probe is inside, and a brief pinching sensation when the needle clicks. It is uncomfortable, but highly tolerable.

Recovery and What to Expect at Home

Once you return home, you must rest for the remainder of the day. Avoid heavy lifting, strenuous exercise, or traveling long distances on a motorbike or three-wheeler for at least 3 to 5 days to allow the area to heal.

It is completely normal to notice the following minor symptoms for a couple of weeks after the test:

• Blood in your urine: Your urine may look slightly pink or have tiny blood spots for a few days.
• Blood in your stool: You might notice a small amount of blood when you pass stool, especially if you strain.
• Blood in your semen: Your semen may look rust-colored or red. This is normal and can last for up to 4 to 6 weeks. It is not harmful to you or a partner.

Important: Drink plenty of clean water (at least 2 to 3 liters a day) after the biopsy. This helps flush out your bladder and prevents clots or infections.

When to seek immediate medical help

While complications are rare, infections can happen. Go to the nearest hospital emergency room immediately if you experience:

• A high fever or chills.
• Severe pain that gets worse instead of better.
• Inability to pass urine at all.
• Heavy, bright red blood or large clots in your urine or stool.

Getting Your Results

The tissue samples will be sent to a pathologist (a laboratory doctor who studies cells). It typically takes about 5 to 7 working days for the report to be ready in Sri Lankan hospitals.

Your urologist will schedule a follow-up appointment to discuss these results with you. If the cells are normal, you may just need regular blood tests to monitor your PSA. If any abnormal cells are found, your doctor will discuss the best treatment options tailored specifically for you.