Harvey Bradshaw Index Calculator

Score Crohn’s symptoms daily with clear clinical weighting. Capture key complications quickly for complete context. Export summaries for records and better follow-up over time.

Enter clinical values
Use the last 24 hours where applicable. Numeric fields accept whole numbers.
Score 0–4.
Select a well-being level.
Score 0–3.
Select a pain level.
Enter a whole number (0+).
Enter 0 or a positive whole number.
Score 0–3.
Select an abdominal mass score.
Include relevant extra-intestinal or perianal findings.
After submit, results appear above this form.
Reset
Example data table
Example only. Do not treat as medical advice.
Well-being Pain Liquid stools Mass Complications Total HBI Interpretation
1 1 3 0 1 6 Mild activity
0 0 1 0 0 1 Remission
3 2 6 2 2 15 Moderate activity
Formula used

The Harvey Bradshaw Index is a point-based sum of five components:

  • HBI = General well-being (0–4)
  • + Abdominal pain (0–3)
  • + Number of liquid stools per day (0+)
  • + Abdominal mass (0–3)
  • + Complications count (each selected = 1)

Common interpretation bands: remission < 5, mild 5–7, moderate 8–16, severe > 16.
How to use this calculator
  1. Select the patient’s general well-being and abdominal pain levels.
  2. Enter the number of liquid stools in the past day.
  3. Choose the abdominal mass category based on examination.
  4. Tick any relevant complications present at the visit.
  5. Press Calculate HBI to view score and severity band.
  6. Use CSV or PDF export to archive results or compare visits.

If symptoms change rapidly or red flags occur, seek urgent care.

Clinical value of the HBI

The Harvey Bradshaw Index condenses daily symptom burden into one reproducible number for Crohn’s disease monitoring. It prioritizes patient‑reported well‑being, abdominal pain, and liquid stool frequency, then adds examination findings and complications. Many services record HBI at baseline and after therapy changes. Using the same scale each encounter improves comparability across clinicians and telehealth reviews. Standardized scoring also supports audit, research registries, and shared decision-making.

Components that drive change

Well‑being and stool counts often move first during flares or treatment response. Abdominal pain can lag behind stool improvement, especially when inflammation is resolving. An abdominal mass score reflects examination findings and should be interpreted alongside imaging and biomarkers when available. Because stool frequency is entered as a raw count, it can dominate the total during high-output diarrhea.

Interpreting the score bands

Scores under 5 commonly indicate clinical remission. Mild activity typically falls between 5 and 7, while 8 to 16 suggests moderate activity that may warrant therapy adjustment. Values above 16 are frequently associated with severe symptoms or multiple complications and merit urgent review. Example: well‑being 2, pain 2, stools 6, mass 1, and one complication gives HBI 12.

Using trends for decisions

Single scores are useful, but trajectories are more actionable. A sustained drop of three to five points over one to two weeks can reflect meaningful improvement, even if remission is not reached yet. Rising scores paired with weight loss, bleeding, fever, or dehydration should trigger timely assessment. Plotting component bars can show whether change is driven by stools alone or broader recovery.

Documenting complications clearly

Each checked complication adds one point, so consistent definitions matter. Record whether findings are new since the last visit and note interventions, such as drainage, antibiotics, or ophthalmology review. Separating perianal issues from extra‑intestinal features improves follow‑up planning.

Quality, limits, and safe use

HBI is a clinical activity index and does not replace endoscopy or imaging. It may underestimate silent inflammation and can be influenced by infections, irritable bowel symptoms, stress, or medication effects. Use it as a structured summary alongside labs, nutrition, and patient goals. When red-flag symptoms occur, escalate care rather than relying on one score.

FAQs

What is the Harvey Bradshaw Index used for?

It summarizes Crohn’s disease symptoms into a single activity score using well‑being, pain, liquid stools, abdominal mass, and complications for consistent follow-up.

How are complications scored?

Each selected complication counts as one point. Use consistent clinical definitions and document key details separately in the note for clarity across visits.

Does a low score guarantee no inflammation?

No. Some patients have ongoing inflammation with few symptoms. Combine the score with labs, imaging, and endoscopy when indicated.

How often should the index be recorded?

Common practice is baseline, after treatment changes, and during routine reviews. Frequency should match symptom volatility and clinical risk.

Can infections or IBS symptoms affect the score?

Yes. Gastroenteritis, antibiotic effects, bile acid diarrhea, and functional bowel symptoms can raise stool frequency and pain, inflating the score.

What should I do if the score rises quickly?

Seek clinical review promptly, especially with bleeding, fever, dehydration, or severe pain. Do not delay urgent care based only on a calculated score.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.