Inclusion criteria:
• Men over 45 years old
• Presence of lower urinary tract symptoms, including frequent urination, feeling of incomplete emptying, intermittency, feeling of need for urgent emptying, weak and trickling urinary stream, urinary straining, and nocturia;
• Grade under 20 in IPSS grading system (mild to severe symptoms);
• Diagnosis of BPH for the first time through examination, ultrasonography and related tests.
Exclusion criteria:
• Men with BPS, who were candidate or being candidate at onset of the study;
Diagnosing the symptoms of prostate cancer, prostate and gallstones, which sometimes have symptoms similar to BPH.