benign prostatic hyperplasia (bph) is probably a normal part of the aging process in men caused by changes in hormone balance and cell-growth factors. genetics may also play a role. 2 this is especially true for severe bph requiring surgery in men younger than 60. men who are older than 50 have a higher chance of developing bph. but why some men have more severe symptoms than others is not known. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what causes benign prostatic hyperplasia bph?