Why Is Hair Diameter as Important as Graft Count?
Why Is Hair Diameter as Important as Graft Count? Read about the biological basis, individual planning and clinical considerations.
The relationship between hair thickness, visual density and graft count.
Hair thickness and fullness
Two people with similar hair counts may have different visible fullness if shaft diameters differ. Hair–skin colour contrast, curl and length also influence the appearance.
A biophysical explanation
Approximating a hair shaft as a cylinder, its cross-sectional area is proportional to the square of its diameter. This mathematical relationship is not, however, a clinical formula that predicts the transplant outcome on its own.
In the KSD approach
Recipient distribution is planned by considering donor density, average hair diameter and hairs per graft together.
A common question
Is this information sufficient for an individual treatment decision? No. The appropriate method, graft count and risks require individual examination.
For general information; publication requires completion of scientific reference checks and medical review.