“…After 8 months of treatment, the lesion thickness was 1.5 mm (regression rate = 21.1%). In the vast majority of researchs on IHs, the regression rate was traditionally defined by subjective outcome evaluations, such as a VAS 19,20 or GAS, 10 based on the improvement of the most important characteristics of IHs (thickness and/or color of superficial IHs, 10,19,20 and volume of deep or mixed IHs 7,21 ). To improve accuracy and credibility, Bingham 22 Although color is also an important characteristic of IH, the therapeutic regimen for IH is largely not determined based on color.…”