| I | Stretch Injury | Urethrogram shows urethral elongation without contrast extravasation | 
| II | Contusion | Blood at the urethral meatus, urethrogram shows no contrast extravasation | 
| III | Partial Urethral Rupture | Contrast extravasation at the injury site, but contrast can enter the proximal urethra or bladder | 
| IV | Complete Urethral Rupture | Contrast extravasation at the injury site, proximal urethra, anterior urethra, or bladder not visualized | 
| V | Complete or Partial Rupture of the Posterior Urethra with Bladder Neck, Rectal, or Vaginal Tear | In female patients, contrast extravasation at the injury site, with or without vaginal bleeding; suprapubic cystogram shows contrast extravasation at the bladder neck, with or without contrast entering the rectum or vagina |