Mayo score for ulcerative colitis
Full and partial (no endoscopy) Mayo scores for ulcerative colitis activity.
Inputs
0 of 3Stool frequency
Rectal bleeding
Endoscopy
Physician global assessment
When to use
- Assessing ulcerative colitis activity or treatment response.
Pearls and pitfalls
- Remission: total 2 or less with no subscore above 1.
- Partial Mayo (without endoscopy) is used in practice; 1 or less is remission.
Why use
The trial standard for UC activity.
| Criterion | Points |
|---|---|
| Stool frequency: Normal | 0 |
| 1–2 more than normal | +1 |
| 3–4 more | +2 |
| 5 or more | +3 |
| Rectal bleeding: None | 0 |
| Streaks, less than half the time | +1 |
| Obvious blood most of the time | +2 |
| Blood alone passed | +3 |
| Endoscopy: Normal or inactive | 0 |
| Mild (erythema, decreased vascular pattern) | +1 |
| Moderate (marked erythema, erosions) | +2 |
| Severe (spontaneous bleeding, ulceration) | +3 |
| Physician global assessment: Normal | 0 |
| Mild | +1 |
| Moderate | +2 |
| Severe | +3 |