However, in contrast to the previous reports that patients with active vitiligo had higher expression of CXCL9 and CXCL10 compared to those with stable vitiligo (8, 38, 39), we only found CXCL9 expression is higher in the circulation of patients with active vitiligo compared to those with stable vitiligo, which may be related to the participants in our study, including segmental and non-segmental vitiligo patients. The gene discussed is CXCL10; the disease is vitiligo.