| Grade I | Reflux into a non-dilated ureter |
| Grade II | Reflux into the upper collecting system without dilatation |
| Grade III | Reflux into dilater ureter and/or blunting of calyceal fornices |
| Grade IV | Reflux into a grossly dilated ureter |
| Grade V | Gross dilatation of the ureter, renal pelvis and calyces: Calyces show loss of papillary impression |
*TREATMENT RECOMENDATION FOR VUR diagnosed following a UTI :
| GRADE | AGE(YRS) | SCARRING | INITIAL TREATMENT | FOLLOW-UP |
| I-II | Any | - | Antibiotic prophylaxis | - |
| III-IV | 0-5 | - | Antibiotic prophylaxis | Surgery |
| III-IV | 6-10 | - | U/L: Antibiotic prophylaxis | Surgery |
| III-IV | 6-10 | - | B/L: Surgery | |
| V | <1 | - | Antibiotic prophylaxis | Surgery |
| V | 1-5 | No | U/L: Antibiotic prophylaxis | Surgery |
| V | 1-5 | No | B/L: Surgery | |
| V | 1-5 | Yes | Surgery | |
| V | 6-0 | - | Surgery |
