Prostate health: enlargement, inflammation, symptoms and tests

Benign prostate enlargement

Benign prostate enlargement (benign prostatic hyperplasia, BPH) is not cancer and does not increase prostate cancer risk. The enlarged gland compresses the urethra, potentially causing:

• difficulty starting urination and needing to strain;
• a weak or intermittent stream;
• dribbling afterwards and incomplete bladder-emptying sensation;
• frequent urination, particularly at night;
• sudden strong urinary urgency.

Symptom severity depends on more than prostate size: some men with marked enlargement have few symptoms, while others with slight enlargement have many. Burning urination and blood in urine are not typical enlargement signs, more often suggesting infection, a stone or another cause requiring examination.

Prostate inflammation (prostatitis)

Prostatitis can occur at any adult age, including younger men. There are three main forms:

• Acute bacterial prostatitis begins suddenly with high fever, chills, painful frequent urination and lower abdominal, perineal or lower back pain. It requires urgent assessment and antibiotic treatment.
• Chronic bacterial prostatitis causes recurrent urinary tract infections with milder symptoms between episodes.
• Chronic prostatitis, or chronic pelvic pain syndrome, is the most common form. Pelvic, perineal or genital pain lasts more than three months, with possible pain during ejaculation and urinary symptoms, usually without proven infection.

Prostatitis can temporarily raise PSA, so PSA testing is postponed until inflammation resolves.

Prostate cancer in brief

Early prostate cancer usually causes no symptoms; urinary symptoms much more often reflect benign enlargement. Risk rises with age and is higher if a father or brother had prostate cancer. A decision about PSA testing in asymptomatic men is made with a doctor because PSA can be raised without cancer and normal with cancer. The European Association of Urology advises offering informed men testing from age 50, earlier with family prostate cancer history. Symptoms, risks and the diagnostic pathway are described in Early signs of prostate cancer.

When to see a doctor

Contact your GP if urinary symptoms interfere with daily life or sleep, if you notice blood in urine or semen, pain during urination or ejaculation, or recurrent urinary tract infections.

Seek urgent help if you cannot urinate at all with a painfully full bladder, have high fever and chills with painful urination, or much blood with clots in urine.

How diagnosis is made

1. Discussion and symptom questionnaire. A doctor asks how often and how you urinate, which medicines you take and how much you drink. They sometimes request a urinary diary for several days.
2. Digital prostate examination through the rectum (digital rectal examination), assessing prostate size, shape and tenderness.
3. Urine and blood tests. Urinalysis shows infection signs or blood, while urine culture identifies bacteria. PSA is measured when useful for treatment or further investigation decisions, after medical discussion.
4. Urological tests, such as ultrasound measuring residual urine after voiding and urine flow measurement. For suspected cancer, a urologist refers for prostate magnetic resonance imaging, with biopsy confirming diagnosis.

Treatment and what you can do

For mild enlargement symptoms, habit changes often help: less evening fluid but enough during the day, less caffeine and alcohol, double voiding to empty the bladder better and gradually increasing intervals between urination. If insufficient, a doctor can prescribe medicines relaxing prostate and bladder-neck muscles or shrinking the gland; for pronounced symptoms a urologist proposes a procedure. Finasteride and dutasteride lower PSA by about half, so mention taking them.

Supplements do not replace examination. A Cochrane review found saw palmetto (Serenoa repens) preparations reduce urinary symptoms little or no more than placebo. The large SELECT study found vitamin E does not protect against prostate cancer; cancer was somewhat more frequent among men taking it. Tell your doctor about supplements.

Cycling does not cause prostate enlargement. It can temporarily raise PSA, so avoid it for 48 hours before blood collection.

The laboratory’s role

The laboratory does not diagnose prostate disease but provides information helping a doctor. PSA shows the level of a prostate-produced protein; with moderately raised PSA its ratio to free PSA (fPSA) helps assess whether further investigation is needed. Urinalysis (dipstick and sediment) shows infection signs or blood; for suspected infection a doctor also requests urine culture.

For reliable PSA, avoid ejaculation and strenuous exercise, particularly cycling, for 48 hours before collection, and have blood taken before digital prostate examination or at least a week afterwards. PSA, free PSA and urinalysis are performed together in the Prostate health panel. Blood collection is available without appointment or referral, and every branch accepts urine samples (listed under Contact).

Frequently asked questions

Can an enlarged prostate turn into cancer?

No. Benign enlargement and prostate cancer are different conditions, although they can coexist. A doctor therefore examines the prostate for urinary symptoms and may recommend PSA after discussion.

What is a normal PSA level?

There is no universal threshold. PSA naturally rises with age and prostate size; a doctor interprets it alongside age, medicines and previous findings. Age thresholds are described in PSA.

Do saw palmetto and other supplements help?

Studies found little or no saw palmetto benefit versus placebo and no vitamin E protection against prostate cancer. Supplements may delay examination, so first discuss symptoms with a doctor.

Is cycling harmful to the prostate?

Cycling has not been shown to cause prostate enlargement or disease. It can temporarily raise PSA, so avoid it for 48 hours before collection.