| Grade I | Posterior urethra stretched but intact |
| Grade II | Partial or complete posterior urethral tear above intact urogenital diaphragm |
| Grade III | Partial or complete tear of combined anterior and posterior urethra with torn urogenital diaphragm |
| Grade IV | Bladder neck injury with extension to the urethra |
| Grade IVa | Injury to bladder base with extravasation simulating type IV |
| Grade V | Isolated anterior urethral injury |
Goldman and Sandler classification of urethral injuries
