Enlarged Prostate (BPH): Symptoms, Causes, Diagnosis and Treatment

An enlarged prostate is a common condition in older men. Medically known as benign prostatic hyperplasia (BPH), it involves a non-cancerous increase in the size of the prostate gland. Because the prostate surrounds part of the urethra, enlargement can interfere with the normal flow of urine. Men may notice frequent urination, a weak stream, difficulty starting urination or repeated trips to the bathroom at night. These symptoms can also have other causes, so proper evaluation is important before choosing treatment.

The prostate is a small gland located below the bladder and surrounding the upper part of the urethra, the tube that carries urine out of the body. Its role includes producing fluid that forms part of semen.

Benign prostatic hyperplasia occurs when prostate tissue increases in size without being cancerous. As the gland enlarges, it may narrow the urethra and affect the flow of urine.

BPH is different from prostate cancer, although both conditions can occur in the same person. Urinary symptoms alone cannot establish whether the prostate is enlarged or identify the underlying cause.

BPH commonly causes lower urinary tract symptoms. Some men experience mild changes for years, while others develop symptoms that interfere with sleep, work and daily activities.

Common symptoms include:

Age-related hormonal changes are believed to contribute to prostate growth. The likelihood of developing BPH increases as men grow older, although the degree of enlargement and severity of symptoms vary considerably.

Family history and other individual health factors may also influence risk. Not every man with an enlarged prostate develops troublesome urinary symptoms, and prostate size does not always correspond to symptom severity.

No. BPH is a benign condition and is not itself prostate cancer. However, BPH and prostate cancer can produce overlapping urinary symptoms, and both may occur in older men.

A doctor may recommend further assessment based on symptoms, examination findings, family history and other risk factors. A prostate-specific antigen (PSA) blood test may be discussed when appropriate, but PSA can rise for reasons other than cancer, including benign enlargement and inflammation.

Men should not assume that new urinary symptoms are harmless or automatically caused by ageing.

Diagnosis starts with a review of urinary symptoms, medical history, medicines and their effect on daily life. The urologist may use a symptom questionnaire to assess how frequently symptoms occur and how troublesome they are.

Depending on the clinical findings, investigations may include:

Lifestyle changes may help some men manage mild urinary symptoms, although they do not reliably shrink an enlarged prostate.

Practical measures can include:

Medication may be appropriate when urinary symptoms are bothersome. The choice depends on symptom severity, prostate size, other medical conditions and potential side effects.

Alpha blockers relax muscles around the prostate and bladder outlet to improve urine flow. Examples include tamsulosin and alfuzosin. They may cause dizziness or changes in ejaculation in some men.

Five-alpha-reductase inhibitors, such as finasteride or dutasteride, can gradually reduce prostate size in selected men with prostate enlargement. Their effects take time and may include sexual side effects.

Some men may benefit from combination therapy or other medicines, depending on whether urgency and frequent urination are prominent. Medication should be prescribed and reviewed by a qualified clinician.

Surgery or another minimally invasive procedure may be considered when symptoms remain troublesome despite medication, urinary retention occurs, or complications develop.

Procedures vary in their suitability, benefits and risks. Transurethral resection of the prostate (TURP) removes obstructing prostate tissue through the urethra. Laser procedures and other minimally invasive techniques may be suitable for selected patients.

The decision depends on prostate anatomy, symptom severity, overall health, treatment goals and the availability of appropriate procedures. Possible risks, recovery expectations and effects on ejaculation should be discussed beforehand.

Yes. Significant obstruction from BPH can prevent the bladder from emptying properly. Some men develop chronic incomplete emptying, while others experience sudden acute urinary retention.

Acute urinary retention may cause severe lower abdominal discomfort and an inability to pass urine. This is a medical emergency and requires immediate assessment. A clinician may need to drain the bladder using a catheter and determine the cause.

Arrange a medical assessment if urinary symptoms persist, worsen, disturb sleep or affect everyday activities. Early evaluation can identify BPH and other possible causes, allowing treatment to be tailored to the individual.

Seek urgent medical attention if you suddenly cannot pass urine, develop fever with urinary symptoms, experience severe pain or notice significant blood in your urine.

An enlarged prostate is common with increasing age and can cause weak urine flow, frequent urination, urgency and nighttime bathroom visits. These symptoms are not specific to BPH, so appropriate evaluation is important.

Treatment may range from monitoring and lifestyle adjustments to medication, minimally invasive procedures or surgery. The approach depends on symptoms, test results, prostate anatomy and the patient's overall health.

Do not ignore persistent urinary symptoms or attempt to treat them with unverified remedies. A urologist can help identify the cause and discuss appropriate options.