Benign prostatic hypertrophy refers to benign adenoma-like hyperplasia of the prostate around the urethra, leading to varying degrees of bladder outflow tract obstruction. The main difficulty in determining the prevalence of benign prostatic hyperplasia is the lack of a common definition, according to autopsy, histologically diagnosed as benign prostatic hyperplasia prevalence in men aged 31 to 40 years 8%, 51 to 60 years old male To 40% to 50%, age> 80 years old male incidence rate of more than 80%. According to clinical criteria, that is, prostate volume> 30ml and the international prostate symptom score is high, 55 ~ 74 years old without prostate cancer in men benign prostatic hyperplasia prevalence rate of 19%, and if the prostate volume> 30ml, the highest score, the largest Urine flow rate of 50ml as a standard, the incidence rate of only 4%.
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