When PSA is Not Cancer: Understanding High Results

A raised Prostate-Specific Antigen (PSA) level can be alarming, but it is not a specific test for cancer. PSA is a protein produced by both normal and cancerous prostate cells. Because it is highly sensitive but relatively nonspecific, many non-cancerous factors can cause your levels to spike.

Here are the primary reasons your PSA might be high without the presence of malignancy:

1. Benign Prostatic Hyperplasia (BPH)

As men age, the prostate naturally enlarges. This non-cancerous growth is the most common cause of elevated PSA. BPH produces approximately 0.1ng/ml of PSA per cc of tissue.

2. Prostatitis and Infections

Inflammation of the prostate (prostatitis) or a Urinary Tract Infection (UTI) can cause a massive temporary spike in PSA levels. It takes up to 6 weeks for PSA to return to baseline after an infection.

3. Recent Ejaculation

PSA is found in high concentrations in seminal fluid. Ejaculating within 24 to 48 hours of a blood test can cause a small, temporary rise in serum PSA levels. Most guidelines suggest abstaining from sexual activity for two days before your test.

4. Physical Trauma or Vigorous Exercise

• Exercise: Activities that put pressure on the prostate, such as vigorous cycling can irritate the gland and raise levels.
• Injury: A fall or direct impact to the perineal area can cause a temporary spike due to trauma to the prostate tissue.

5. Medical Procedures and Examinations

Any recent “urological instrumentation” can interfere with results. This includes:

• Insertion of a urinary catheter.
• Prostate biopsies or surgery.
• Bladder examinations (cystoscopy).
• Even a Digital Rectal Exam (DRE) can cause a minor, though usually negligible, increase.

6. Age and Prostate Size

PSA levels naturally increase as you get older. This is why doctors use “age-adjusted” ranges. For example, a PSA of 4.5 might be suspicious for a 45-year-old but considered normal for a 70-year.

What happens if your PSA is high?

Because PSA levels fluctuate, a single high result is rarely enough for a diagnosis. If your level is raised, your doctor may recommend:

• A Repeat Test: To see if the level drops naturally after a few weeks.
• mp-MRI Scan: A detailed scan used to look for suspicious areas within the prostate. A clear MRI (reported as low risk) has a 90% chance of ruling out significant cancer.
• PSA Density: Dividing your PSA level by the volume of your prostate (measured via scan) to see if the level is appropriate for your prostate’s size.

At this point, a decision is made as to whether a biopsy is required.

Based in Manchester and Cheshire, Mr Gerald Collins is currently accepting private consultations for the assessment of kidney masses, haematuria, and general urological concerns. With 29 years of experience, he provides the clarity and expertise needed to move from uncertainty to a confident treatment plan.