Weighted Glasgow 7-Point Checklist (Melanoma)
Weighted Glasgow 7-point checklist (MacKie 1990): major features (change in size, shape, color) score 2 points each and minor features (diameter ≥ 7 mm, inflammation, oozing, altered sensation) 1 point each.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Change in size
- Yes
- Change in shape
- No
- Change in color
- Yes
- Diameter ≥ 7 mm
- No
- Inflammation
- No
- Oozing / crusting
- No
- Change in sensation
- No
Result: Weighted Glasgow 7-point checklist 4 — refer (>= 3): suspicious pigmented lesion.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- < 3
- Below the referral threshold.
- >= 3
- Refer for a suspicious pigmented lesion. Major features 2 points each, minor 1 point each. A screening checklist, not a diagnosis.
What you enter
- Change in size (major, 2)
- Change in shape (major, 2)
- Change in color (major, 2)
- Diameter ≥ 7 mm (minor, 1)
- Inflammation (minor, 1)
- Oozing / crusting (minor, 1)
- Change in sensation (minor, 1)
How this is calculated
MacKie RM. Clinical recognition of early invasive malignant melanoma. BMJ. 1990;301(6759):1005-1006. Weighting: major features 2 points, minor features 1 point (Walter FM, et al. BMJ. 2013;345:e6970). Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.