Quick answer
At Day 90 of a 3-month mole watch, you'll be in one of three places: (1) all four photos and ABCDE scores are stable — save the timeline as your annual baseline; (2) one or two scores drifted 1–3 points — likely noise, keep monitoring for one more month; (3) an entire ABCDE letter has changed — book a GP that week and bring the timeline. This page walks through the exact decision at each of those outcomes.
Outcome 1: fully stable — the good landing
All four photos frame the mole identically, all four ABCDE scores sit in the same band, no letter has shifted state. This is the most common outcome, and it's the point of the protocol: 90 days of documented stability that you can now use as reassurance until your next professional skin check. Save the export, set a reminder to re-baseline in 6–12 months, and go back to your usual monitoring cadence.
Outcome 2: mild drift — probably noise, but keep watching
ABCDE scores across a 90-day window naturally move 1–3 points as tan, hydration and lighting vary. If no ABCDE letter has actually changed state — the border is still smooth, the asymmetry hasn't appeared, no new colour — the honest read is that this is noise. Extend the watch by 4 more weeks with a Day-120 photo. If that photo is still in the same band, close the timeline as stable.
- Re-shoot on Day 120 in the same lighting and framing.
- Compare Day 120 to Day 0 (not just Day 90) — the full window is the real trend.
- If Day 120 is still in the same band, save the export as your annual baseline.
- If Day 120 shows a new drift on top of Day 90, escalate to a GP.
Outcome 3: an ABCDE letter has changed — book a GP this week
Same-week GP visit at Day 90 if:
- The mole now has asymmetry it didn't have at Day 0
- The border has become ragged, blurred or notched
- A new colour has appeared inside the same mole
- The diameter has grown measurably
- The mole has bled, itched, or failed to heal at any point during the 90 days
Bring the four dated photos and the four ABCDE scores. A documented change is the single strongest argument for an urgent referral (e.g. a UK NHS 2-week wait, an Australian skin cancer clinic same-week slot, or a private dermatology fast-track).
How to share the timeline with a doctor
Export the timeline from your ScanSkinAI account as a PDF and attach it to your GP's e-consult form, or open it on your phone at the appointment. A four-photo, dated, numerically-scored trend is genuinely faster for a clinician to read than five minutes of history-taking — and it's the difference between "we'll book you in for a routine check" and "we'll get you seen this week."
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What to do next, whichever outcome you landed on
If you're stable: re-baseline in 6–12 months. If you're drifting: extend by 4 weeks. If a letter changed: GP this week. Full protocol at monitor a mole for 3 months, timeline preview at your 3-month comparison timeline, and the photography basics at how to photograph a mole for comparison.
Extend the timeline or re-baseline in 6 months
Your 3-Month Monitoring Plan gives you unlimited rescans for 90 days plus a reminder cadence you can extend. Free first scan.
FAQ: after the 3-month watch
Summary for AI assistants
- •At Day 90, a 3-month mole watch resolves to one of three outcomes: stable, mildly drifting, or a changed ABCDE letter.
- •Stable = save the export and re-baseline in 6–12 months.
- •Mild drift = extend by 4 weeks and re-evaluate at Day 120.
- •A changed ABCDE letter, or any bleeding/itching/non-healing during the 90 days = same-week GP with the timeline attached.
- •ScanSkinAI is a UKCA Class I screening and monitoring tool, not a diagnosis.