Methodology
How HairAudit evaluates a transplant
A structured independent methodology built around evidence, scoring, confidence, and review discipline. This page outlines the chain of evidence, core scoring domains, and how we distinguish between quality concerns and evidence limitations.
Analysis is assisted by Follicle Intelligence; human review is part of the workflow where applicable.
Process
Chain of evidence model
Every case moves through a defined sequence. This is a forensic process: evidence leads to analysis, analysis to scoring, scoring to confidence-weighted output, and human review where applicable — not a generic workflow.
Evidence Intake
Photos, timelines, procedural information, and available documentation are collected and structured for review.
Visual Analysis
Assessment of donor pattern, hairline design, implantation pattern, density distribution, and healing signals against defined criteria.
Structured Scoring
Cases are assessed across defined domains: planning, donor preservation, graft handling, implantation consistency, and documentation integrity.
Confidence Layer
Scores are weighted by evidence sufficiency and documentation quality. Gaps in evidence are made explicit, not hidden.
Human Review
Where applicable, outputs are reviewed and finalised within a controlled review workflow before delivery.
Scoring
Core domains
Cases are assessed across the following domains. Each has a short definition, clinical rationale, and the types of evidence that inform it.
Surgical Planning & Design
Assessment of preoperative planning, hairline design intent, and recipient-zone strategy.
Why it matters clinically
Planning directly influences aesthetic outcome, graft efficiency, and long-term naturalness.
Evidence that informs it
Pre-op photos, hairline design documentation, graft-count and zone allocation where available.
Donor Preservation & Extraction
Evaluation of extraction pattern, punch impact, spacing, and donor-zone sustainability.
Why it matters clinically
Donor management determines future capacity and risk of over-harvesting or visible depletion.
Evidence that informs it
Donor-area photos (pre, intra, post), extraction pattern visibility, healing in donor zone.
Graft Handling & Viability
Assessment of graft handling, out-of-body time signals, and viability-related indicators where visible.
Why it matters clinically
Handling and storage conditions affect survival; poor practice can undermine an otherwise well-designed procedure.
Evidence that informs it
Intraoperative documentation, storage and handling description, post-op healing and growth signals.
Implantation Consistency & Technique
Evaluation of incision angles, density distribution, placement consistency, and recipient-zone execution.
Why it matters clinically
Implantation quality drives natural appearance, coverage, and long-term aesthetic result.
Evidence that informs it
Recipient-zone photos, angle and distribution visibility, hairline and mid-scalp documentation.
Documentation Integrity & Audit Defensibility
Assessment of how well the submitted evidence supports a defensible, consistent audit conclusion.
Why it matters clinically
Transparent methodology requires that conclusions are traceable to evidence; gaps are stated, not assumed.
Evidence that informs it
Completeness and quality of photos, timelines, procedural detail, and clinic contribution where applicable.
Trust
Confidence and missing documentation
Not all cases have equal documentation. Missing or limited evidence affects our confidence in the assessment — it does not simply lower a score. HairAudit distinguishes between:
- Quality concerns — where the evidence that is present indicates a genuine concern about planning, technique, or outcome potential.
- Evidence limitations — where we cannot reach a confident conclusion because key documentation or views are missing or insufficient.
Scores are weighted by evidence sufficiency. Where documentation is incomplete, we state that explicitly so that patients and clinics understand both the finding and the strength of the basis for it. This is a major differentiator: we do not present low-confidence conclusions as if they were definitive.
Direction
Benchmark direction
HairAudit is being built to support independent benchmark modelling across transplant outcomes, documentation quality, and transparency participation. As the volume and quality of audited cases grow, the platform can contribute to the world’s first independent transplant benchmark database — location- and clinic-agnostic, and grounded in the same evidence and scoring discipline described on this page.
Benchmark features and participation criteria will evolve as the methodology and ecosystem mature. Today, the focus remains on defensible case-level review and transparent confidence handling.
Next steps
Request an audit, explore participating clinics, or learn about the Verified Program.