This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Prostate & Seminal Vesicles, Subject name: Surgery
Indication for surgery in BPH: 
Select and explain. 
A. Acute bilateral hydronephrosis, B. Nocturnal frequency, C. Recurrent UTI, D. Voiding bladder pressure >50 cm water
C: Recurrent UTI
Answer: C: Recurrent UTI 
Explanation: Ans: c (Recurrent UTI) Ref:Campbells, 8th ed, p. 1340Absolute indication for surgery in BPH1. Refractory urine retention2. recurrent UTI3. Bladder stone due to BPH4. Renal insufficiency due to BPH5. Large bladder diverticula due to BPH6. Recurrent gross hematuria due to B PH