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Symptoms of Benign Prostatic Hyperplasia (BPH)
by Ricker Polsdorfer, MD
As the prostate enlarges, the urethra becomes narrower. The bladder will get stronger to compensate, but eventually normal outflow of urine is obstructed. Symptoms usually appear gradually over time.
These symptoms are indications that your bladder is not emptying completely:
Note: Nighttime urination can be a sign of incomplete emptying. In addition to heart failure, nighttime urination can also be a sign of other medical conditions. See your doctor if it persists.
Other common symptoms include:
An obstructed urine flow often means that there is some urine stuck in the bladder (called residual urine). Having residual urine makes you vulnerable to urinary tract infections (UTIs), which can be either frequent or chronic. If you have a UTI, you may have additional symptoms, such as burning when you pass urine. UTIs by themselves also cause urgency and frequent urinating.
There is at least one common exception to the usual gradual development of symptoms. Sudden complete urine obstruction may occur in an elderly person due to dementia, inability to get out of bed, or drug side effects. The bladder may stretch to the size of a six-month pregnancy and fill the lower half of the abdomen. In such a case, emergency catheterization is required.
American Urological Association (AUA) Practice Guidelines Committee. AUA guideline on management of benign prostatic hyperplasia. Available at:
...(Click grey area to select URL)
Accessed September 8, 2017.
Benign prostatic hyperplasia (BPH). EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated September 1, 2017. Accessed September 8, 2017.
Pearson R, Williams PM. Common questions about the diagnosis and management of benign prostatic hyperplasia. Am Fam Physician. 2014;90(11):769-774.
Last reviewed September 2017 by EBSCO Medical Review Board Adrienne Carmack, MD
Last Updated: 9/17/2014
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