In follow up of BPH, most impoant indication of surgery is
High-Yield Explanation
Indications for surgery in BPH are: * Prostatism *Acute retention of urine *Chronic retention of urine with residual urine > 200ml*Complications like hydroureter, hydronephrosis, stone formation, recurrent infections, bladder changes.*HematuriaReference : page 1045 SRB's manual of surgery 5th edition