Request a Second Opinion

BPH Urological Assessment

Read the short version

Show video transcript

Benign prostatic hyperplasia or hypertrophy is a very common condition in our community.

Approximately 20% of men end up undergoing surgery for this condition in their lifetime1.

This frequency increases with age2.

Patients usually present with either obstructive or irrative symptoms.

The obstructive symptoms are hesitancy, poor flow, straining to void, and the feeling of incomplete empty.

The irrative symptoms are frequency, going very often, urgency or rushing to go and pass urine, and nocturia, getting up at night.

Some patients may also present with recurrent urinary tract infections, recurrent haematuria, blood in the urine, or even urinary retention, the bladder blocking off.

We generally assess the severity of these symptoms by using a symptoms score.

This is an American Urological Symptoms Score3, or International Prostate Symptoms Score4.

There are seven questions that we ask patients, and these are scored between zero to five, and they’re really divided into those obstructive and irrative symptoms, and we get a score out of thirty-five that the patient fills out, independently of the doctor, so we get an objective assessment of the severity of these symptoms, and how they’re impacting on this particular patient’s life.

You can divide them between zero and seven, seven to eighteen and eighteen to thirty-five, with 18-35 being severely symptomatic, 7-18 being moderately symptomatic, and 0-7 being mild.

We then investigate patients by doing a number of tests.

We would usually do some blood tests to check for kidney function, we do a PSA to check for prostate cancer, and we do a flow test to assess how fast urine is coming out.

To do a flow test, a patient passes urine into a toilet, and we measure the amount the patient passes and the speed, and then we can compare that to the normal population and see if there’s obstruction or not.

In some patients, we do an urodynamic evaluation5, which is a pressure test on the bladder.

That involves putting a catheter in the bladder, filling the bladder with fluid, getting the patient to pass urine, measure the pressure the bladder squeezes out, how fast urine comes out, and from that we can tell if there’s a significant blockage from the prostate.

We also can tell with that test if there’s instability, that is the bladder contracting by itself.

A very important part of the assessment is also the clinical examination, where we feel the prostate, we feel the size, and we most importantly check for any nodules or thickening which may indicate prostate cancer.

Generally, we also do an ultrasound to check what the residual volume is.

This is very important because if there’s a large amount of urine left behind, that can be a sign of the bladder failing.

It can be a sign that we may need to do some treatment to prevent further damage or problems occurring.

One of the other tests that we also do is a urine test to check for any infections.

If the condition is left, patients can develop chronic retention with the bladder6, blocking off and not functioning, and occasionally patients can develop renal failure with blockage up to the kidneys.

So once we’ve done all these tests, we get an assessment of the severity of the symptoms, and our management is then based on the severity of the symptoms.

BPH Urological Assessment

Benign prostatic hyperplasia (BPH), also called benign prostatic hypertrophy, is a very common condition. Around 20% of men end up needing surgery for it at some point in their life,1 and the frequency rises with age.2

Symptoms

BPH symptoms fall into two groups:

  • Obstructive symptoms - hesitancy, poor flow, straining to pass urine, and a feeling of incomplete emptying.
  • Irritative symptoms - going very often (frequency), rushing to go (urgency), and getting up at night (nocturia).

Some men present with recurrent urinary tract infections, blood in the urine (haematuria), or urinary retention - where the bladder blocks off completely.

Scoring how severe the symptoms are

Severity is graded using a patient-completed questionnaire - either the American Urological Association Symptom Score3 or the International Prostate Symptom Score.4 Seven questions are each scored 0–5, giving a total out of 35. Because the patient fills it in independently of the doctor, it provides an objective measure of how much the symptoms are affecting daily life:

  • 0–7: mild
  • 7–18: moderate
  • 18–35: severe

Tests used to investigate BPH

  • Blood tests to check kidney function, and a PSA test to screen for prostate cancer.
  • Urine flow test - the patient passes urine into a special toilet that measures volume and speed, which is compared with the normal range to look for obstruction.
  • Ultrasound to measure the residual volume left in the bladder after passing urine. A large residual can be an early sign of the bladder starting to fail.
  • Urine test to check for infection.
  • Clinical examination to feel the size of the prostate and, importantly, check for any nodules or thickening that might indicate prostate cancer.
  • Urodynamic evaluation5 in selected patients - a pressure test where a catheter is placed, the bladder is filled, and the patient passes urine so the squeeze pressure and flow rate can be measured. This can confirm whether there is a significant blockage from the prostate, and can also show bladder instability (the bladder contracting on its own).

Why assessment matters

If BPH is left untreated, some men develop chronic retention,6 where the bladder stops working properly, and occasionally the blockage extends up to the kidneys and leads to kidney failure. Once the tests are complete, management is tailored to how severe the symptoms are.

References
  1. The global, regional, and national burden of benign prostatic hyperplasia in 204 countries and territories from 2000 to 2019: a systematic analysis for the Global Burden of Disease Study 2019 - Volume 3, ISSUE 11, e754-e776, November 2022 - The Lancet - DOI:https://doi.org/10.1016/S2666-7568(22)00213-6
  2. The growing problem of an enlarged prostate gland - Harvard Health Publishing - https://www.health.harvard.edu/mens-health/the-growing-problem-of-an-enlarged-prostate-gland
  3. American Urological Association Symptom Index - ScienceDirect - https://www.sciencedirect.com/topics/medicine-and-dentistry/american-urological-association-symptom-index
  4. Calculator: International Prostate Symptom Score (IPSS) - UNC Men's Health Program - https://www.med.unc.edu/menshealth/calculator-international-prostatism-symptom-score-ipss/
  5. Urodynamic Testing - National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) - https://www.niddk.nih.gov/health-information/diagnostic-tests/urodynamic-testing
  6. Kevin T McVary - Benign prostatic hyperplasia (BPH) (Beyond the Basics) - https://www.uptodate.com/contents/benign-prostatic-hyperplasia-bph-beyond-the-basics/print