ABSTRACT

Introduction Benign prostatic hyperplasia (BPH) occurs histologically in approximately 50% of men at the age of 60 and in nearly 100% of men by 80 years.1 It has been estimated that the prevalence of ‘clinical’ BPH, defined as an enlargement of the prostate gland to a weight of more than 20 g in the presence of symptoms and/or a urinary flow rate of less than 15 ml/s and without evidence of malignancy was 253/1000 in a sample of 705 men aged 40-79 registered with a group general practice in Scotland.2 In the USA, Glynn et al.3 calculated the chance of a 40-year-old-man subsequently requiring a prostatectomy as 29%.