When Do You Need A Prostate Biopsy?
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When Do You Need A Prostate Biopsy?
Prostate biopsy procedure illustration showing tissue sampling and microscope analysis.

When Do You Need a Prostate Biopsy?

A prostate biopsy may be recommended when prostate test results or imaging findings raise concern for clinically significant prostate cancer. By examining prostate tissue samples directly, a biopsy provides the most definitive way to confirm the presence of cancer and guide appropriate treatment planning.

Dr Lincoln Tan
Dr Lincoln Tan
Consultant Urologist
MBBS, MRCS(EDIN), MMED(SURG), FRCS(UROL)(RCPSG), FAMS(UROL)
Doctor taking notes during a consultation while a patient sits and discusses their medical concerns.

Who Should Consider a Prostate Assessment?

Further evaluation for prostate cancer may be recommended if you are experiencing persistent urinary symptoms, abnormal prostate test results, or risk factors associated with prostate cancer.

You may benefit from prostate evaluation if you:

  • Are aged 50 and above
  • Have a family history of prostate cancer
  • Experience urinary symptoms such as weak urine flow, frequent urination, or difficulty passing urine
  • Experience pelvic discomfort or lower back pain
  • Notice blood in the urine or semen
  • Have previously been diagnosed with an enlarged prostate or prostatitis
  • Have had unusual findings from prior screening tests

A timely specialist assessment from Dr Lincoln Tan can help determine whether further investigation, including prostate biopsy, may be necessary.

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What Could Be Causing Your Prostate Symptoms?

Urinary symptoms, changes in urinary habits, or prostate-related discomfort may be linked to underlying prostate conditions that require further evaluation.


These may include:

  • Prostate Cancer

    Cancer within the prostate gland that may require further investigation and treatment.

  • Benign Prostate Enlargement (BPH)

    A common non-cancerous enlargement of the prostate that can affect urinary function and raise PSA levels.

  • Prostatitis

    Inflammation or infection of the prostate that may cause discomfort, urinary symptoms, and temporary PSA elevation.

Because these conditions can present in similar ways, a structured assessment is important in determining whether further investigation, including prostate biopsy, may be necessary. 

Urologist explaining prostate anatomy and male urinary system using a medical model during a patient consultation.

Early Assessment Matters for Prostate Symptoms and Prostate Cancer Risk.

Specialist evaluation can help identify the cause of prostate concerns and guide appropriate next steps for investigation and treatment.

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How We Assess Whether a Prostate Biopsy Is Needed

Not everyone with abnormal prostate findings or symptoms will require a biopsy straight away. At Tan Urology, we use a combination of clinical assessment, blood tests, and advanced imaging to better evaluate each patient’s individual prostate cancer risk before recommending the most appropriate next steps. 


This may include:

01

Prostate Specific Antigen (PSA) Test

The PSA test is usually the first step in evaluation. This is a blood test that measures the level of prostate-specific antigen in the blood and helps identify whether further investigation may be needed. PSA levels are interpreted alongside factors such as age, symptoms, prostate size, and imaging findings to provide a more complete assessment of prostate cancer risk.
02

Prostate Magnetic Resonance Imaging (MRI)

A prostate MRI is often performed when there is ongoing concern after blood tests. It provides detailed imaging of the prostate and helps identify suspicious areas within the prostate and can guide whether targeted biopsy or further investigation may be appropriate.
03

Prostate Health Index (phi)

The Prostate Health Index (phi) is an advanced blood test that combines multiple PSA markers to provide a more refined assessment of prostate cancer risk. It is often used when PSA levels are elevated or inconclusive and may help distinguish between higher-risk and lower-risk cases before proceeding to biopsy.

A prostate biopsy may be recommended when the overall results from these tests suggests a higher likelihood of clinically significant prostate cancer. This decision is based on a combination of findings rather than a single test result alone. 

Get Prompt Specialist Assessment for Prostate Concerns.

At Tan Urology, comprehensive prostate assessment, from consultation to prostate biopsy, can be completed within 48 hours when clinically appropriate.

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FAQs About When a Prostate Biopsy May Be Needed

Why is a prostate biopsy important?

A prostate biopsy is the most definitive way to diagnose prostate cancer. By examining prostate tissue samples directly, it helps confirm whether cancer is present and allows doctors to determine the most appropriate treatment or follow-up plan.

Does a high PSA always mean cancer?

No. A high PSA level does not always indicate prostate cancer. PSA levels can also rise due to benign prostate enlargement, inflammation, infection, or age-related changes. Additional tests such as prostate MRI or the Prostate Health Index (phi) are often used to better assess prostate cancer risk and guide whether further investigation, including biopsy, is appropriate.

Can MRI avoid prostate biopsy?

A prostate MRI helps identify suspicious areas within the prostate that may require targeted biopsy. MRI findings also help guide clinical decision-making by providing a clearer assessment of prostate cancer risk alongside PSA and other investigations.

What PSA level usually requires biopsy?

There is no single PSA level that automatically means a biopsy is needed. PSA results are interpreted alongside factors such as age, family history, MRI findings, PSA trends over time, and other risk assessment tools like phi. A biopsy is usually recommended when the overall findings suggest a higher risk of clinically significant prostate cancer.

What happens if biopsy results are negative?

A negative biopsy means that no cancer was detected in the tissue samples examined. Depending on your PSA levels, MRI findings, and overall clinical assessment, your urologist may recommend follow-up evaluation or ongoing surveillance to ensure any future changes are appropriately monitored.
Dr Lincoln Tan, Consultant Urologist in Singapore, standing in his clinic with professional achievements displayed on the wall.
Our Urologist

Dr Lincoln Tan

Consultant Urologist
MBBS, MRCS(EDIN), MMED(SURG), FRCS(UROL)(RCPSG), FAMS(UROL)

Dr Lincoln Tan is a consultant urologist with a subspecialty focus in prostate cancer, as well as extensive experience in advanced diagnostics. By combining advanced risk stratification tools with his clinical expertise, Dr Tan has developed a measured and evidence-based approach to prostate cancer detection.

Dr Tan was the principal investigator of the first local study validating the use of the Prostate Health Index (phi) in Singapore. This work has helped improve how prostate cancer risk is assessed, allowing for more accurate identification of patients who require a biopsy while reducing unnecessary procedures in lower-risk individuals. 

Beyond his clinical work, Dr Tan regularly supports men’s health initiatives and is actively involved in mentoring and training future urology specialists.

Learn More About Dr Lincoln Tan
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