| Etiologies | Frequency | Percentage (%) |
| Prostate tumor | 50 | 65.8 |
| Urethral stricture | 19 | 25 |
| Lithiasis urethral | 1 | 1.3 |
| Bladder tumor | 1 | 1.3 |
| Trauma of the pelvis | 5 | 6.6 |
| Total | 76 | 100 |