| Scoring | Type |
| 1 | Minor ulcer |
| 2 | Herpetiform ulcer |
| 3 | Major ulcer |
|
| Number of ulcers/attack |
| 1 | 1 - 3 |
| 2 | 4 - 6 |
| 3 | 7 - 9 |
| 4 | 9 - 12 |
| 5 | More than 12 |
|
| Duration of the attack |
| 1 | 1 - 4 days |
| 2 | 5 - 8 days |
| 3 | 9 - 12 days |
| 4 | More than 12 days |
|
| Frequency (attack/date) |
| 5 | 0 - 2 weeks |
| 4 | 3 - 4 weeks |
| 3 | 5 - 6 weeks |
| 2 | 7 - 8 weeks |
| 1 | More than 8 weeks |
|
| Associated symptoms |
| 1 | Uncomfortable |
| 2 | Painful, but not interfere with eating or swallowing |
| 3 | Interfere with solid feeding |
| 4 | Interfere with liquid feeding |