| The diagram shows the prostate below the bladder, through which the prostatic urethra drains urine from the bladder above. An enlarged prostate can narrow the prostatic urethra to compromise urine flow and result in urinary obstruction and urinary retention, with residual urine in the bladder, giving the symptoms of bladder fullness with urgency, frequency of urination, and poor urine flow (dribbling).. |
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