What Types Of Tests Are Used To Diagnose BPH? Thumbnail

What Types Of Tests Are Used To Diagnose BPH?

Benign Prostatic Hyperplasia, also known as BPH, is a non-cancerous condition of the prostate. BPH involves the enlargement of the prostate that can cause disturbing urinary problems. The exact cause of BPH is not exactly known, but it has been stated that prostate enlargement is a common aging condition. The associated urinary problems are being caused by the enlarged prostatic tissue that blocks the urethra, stopping the normal flow of urine. The most common symptoms of BPH are urinary frequency and urgency, burning urination, blood in the urine, nocturia, dribbling urination, and many others. If you would like to assess your symptoms, you can take the 2-minutes BPH Symptoms Checker. BPH diagnosis is based on a conjunction of medical tests that will provide a clear image of the condition.

A physical examination, patient history, evaluation of symptoms, laboratory tests, and other tests provide the basis for a diagnosis of benign prostatic hyperplasia (BPH). The physical examination includes a digital rectal examination (DRE), and symptom evaluation is obtained from the results of the AUA Symptom Index.

How is BPH diagnosed?

BPH, or prostate enlargement, is diagnosed by means of specific prostate tests. BPH tests include the PSA test, Urinalysis, DRE, Uroflowmetry, Filling Cystometry, Cystoscopy, and Ultrasound.

The following tests are sometimes used to diagnose BPH, but not all of them are always necessary. Your doctor will discuss with you which of these might be helpful in your case.

PSA Test

This blood test measures a protein produced by the cells of the prostate gland. It is always done and evaluated in conjunction with a DRE. The PSA test is a screening method for BPH diagnosis and prostate cancer diagnosis.


A urinalysis is another one of the routine tests used to diagnose BPH as part of a physical examination. It involves collecting a urine sample in a cup from the patient and then examining the sample under a microscope.

Digital Rectal Exam (DRE)

The Digital Rectal Examination (DRE) is one of the standard tests used to diagnose BPH. During this test, a urologist inserts a gloved finger into the rectum to check your prostate for enlargement and abnormalities.


In this noninvasive test, a man urinates into an electronic device that measures the speed of his urine flow. A slow flow rate suggests an obstruction of the urethra. If the flow rate is high, urethral obstruction is unlikely, and therapy for BPH will not be effective in most instances. A normal urine flow rate is 15 mL per second or higher.

Filling Cystometry

This test involves filling the bladder with fluid and measuring how much pressure builds up and how full the bladder is when the urge to urinate occurs. It is recommended for evaluating bladder function only in men who have a prior history of urological disease or neurological problems that could be affecting bladder function.


A lighted, flexible cystoscope is inserted into your urethra, allowing your doctor to view the inside of your urethra and bladder. A Cystoscopy is usually performed just before prostate surgery to guide the surgeon in performing the procedure or to look for abnormalities of the urethra or bladder.


An Ultrasound uses sound waves to check the size and structure of the kidneys, bladder, and prostate. A small device called a transducer is inserted into the rectum (transrectal ultrasound) to visualize and evaluate the prostate.

A few, if not all, of the tests above may be performed based on the information that you provide your doctor. Remember that BPH is a common condition, but many of the symptoms of BPH can also be shared with other, more insidious diseases such as prostate cancer. Be sure to visit your doctor if you experience any symptoms of BPH to ensure a proper diagnosis and a suitable course of treatment.

Dr. David Samadi | Robotic Prostate Surgeon


ProstateCancer911.com is a resource created by Dr. David Samadi in order to raise awareness and get more men to receive prostate cancer treatment. The information is strictly general and you should always discuss with your doctor issues concerning your health.


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