Causes

Frequency

%

Obstructive uropathy

BPH

Renal stone

Uretic structure

Urethral structure

Ca prostate

Bladder mass

PUV

Neurogenic bladder

Total

38

23

5

6

10

5

1

3

91

42

26

5

7

11

5

1

3

100

Non-obstructive uropathy

Post operative

Post URS

Total

6

3

9

67

33

100