In a TrichoScan, computer-assisted images of areas of the scalp are used to determine parameters such as hair density and thickness, hair root status and growth rate. This enables us to draw conclusions about the cause of hair loss and to assess and document the success of a therapy.
For the analysis, a small area of approximately 2 cm2 at the back of the head is first shaved and dyed. The selected area is hidden and can be easily covered by appropriate combing. Subsequently, pictures are taken with a special camera stored in the computer and then evaluated. In order to quantitatively evaluate hair loss, pictures are taken again after three days and the computer determines the relationship between hair growth (anagen) and loss (catagen) phases. Normally about 85% of the hair should be in the growth phase and about 8–14% in the loss phase. A reversal of this ratio can, for example, indicate hereditary hair loss.