If left untreated, BPH can progress and cause subsequent medical issues. When the bladder does not empty completely, you become at risk for developing urinary tract infections (UTIs). Other serious problems can also develop over time, including bladder stones, blood in the urine (Hematuria), incontinence, or urinary retention. Urinary retention is the sudden and complete inability to urinate and can occur when the obstruction from BPH progresses to the point that the prostate blocks the urethra and it is no longer possible to completely empty the bladder. If retention occurs, emergency medical intervention is required. In rare cases, bladder and/or kidney damage can develop from BPH.
1Benign enlargement of prostate. ADAM Health Illustrated Encyclopedia. http://www.healthline.com/adamcontent/enlarged-prostate. Accessed Oct. 21, 2010.2Barry M, Roehrborn C. Management of benign prostatic hyperplasia. Annu Rev Med.1997;48:177-189.