Age and normal male androgenic function are the two most well-establis
hed risk factors for benign prostatic hyperplasia. Clinical manifestat
ions of BPH may range from minimally bothersome symptoms to urinary re
tention and renal failure. Digital rectal examination, serum PSA, urin
alysis, serum creatinine, and the AUA symptom score are recommended fo
r the initial evaluation. For mild symptoms, watchful waiting may be a
ll that is needed. For severe symptoms, surgical therapy is the most a
ppropriate option. For melt with mild to moderate symptoms, less invas
ive procedures and several pharmacologic therapies have proved to be e
ffective for treating BPH. The pharmacologic therapies include a Scr-r
eductase inhibitor (finasteride) and three selective alpha-1 blockers
(terazosin, doxasozin, and tamsulosin).