Calculator Input Form
Clinical Note
The full Mayo score totals four components. Each component ranges from 0 to 3. The combined score ranges from 0 to 12.
Some settings also use a partial Mayo score, which excludes endoscopy. This calculator is designed for the full Mayo score.
Example Data Table
| Example Case | Stool Frequency | Rectal Bleeding | Endoscopic Findings | Physician Global | Total | Interpretation |
|---|---|---|---|---|---|---|
| Case A | 0 | 0 | 1 | 1 | 2 | Remission or inactive disease |
| Case B | 1 | 1 | 1 | 1 | 4 | Mild disease activity |
| Case C | 2 | 2 | 2 | 2 | 8 | Moderate disease activity |
| Case D | 3 | 3 | 3 | 2 | 11 | Severe disease activity |
Formula Used
Full Mayo Score = Stool Frequency + Rectal Bleeding + Endoscopic Findings + Physician Global Assessment
Each section contributes 0 to 3 points.
The minimum total score is 0.
The maximum total score is 12.
Interpretation Guide
- 0 to 2: Remission or inactive disease
- 3 to 5: Mild disease activity
- 6 to 10: Moderate disease activity
- 11 to 12: Severe disease activity
How to Use This Calculator
- Enter an optional patient name and date.
- Select the stool frequency score from 0 to 3.
- Select the rectal bleeding score from 0 to 3.
- Select the endoscopic findings score from 0 to 3.
- Select the physician global assessment score.
- Press the calculate button.
- Review the total score, percentage, and activity interpretation.
- Download the result as CSV or PDF if needed.
Frequently Asked Questions
1. What does the Mayo score measure?
The Mayo score measures ulcerative colitis activity using symptoms, bleeding, endoscopy, and physician assessment. It helps summarize current disease severity in a structured way.
2. What is the score range?
The full Mayo score ranges from 0 to 12. Each of the four components contributes 0 to 3 points to the total.
3. What is a partial Mayo score?
A partial Mayo score excludes the endoscopic component. It is often used in follow up when endoscopy is unavailable, but this page calculates the full score.
4. Can this tool diagnose ulcerative colitis?
No. This tool organizes scoring only. Diagnosis and treatment require clinical evaluation, history, testing, and professional interpretation.
5. Why include physician global assessment?
Physician global assessment adds clinician judgment, including exam findings and the broader disease picture. It complements symptom and endoscopic data.
6. Is a higher score worse?
Yes. Higher scores indicate greater disease activity. Lower scores suggest better control or remission.
7. Can I save the result?
Yes. After calculation, you can download the result as a CSV file or generate a PDF summary for documentation or review.
8. Should treatment decisions rely only on this score?
No. Treatment decisions should also consider symptoms, labs, imaging, endoscopy, comorbidities, and specialist judgment.