Objective To investigate the relationship between vitiligo and thyroid diseases .Methods Chemiluminescence was used to detect serum levels of free triiodothyronine (FT3) ,free thyroxine(FT4) ,thyrotropic stimulating hormone(TSH) ,anti‐thy‐roglobulin antibody(TG‐Ab) and anti‐thyroperoxidase antibody(TPO‐Ab) in 289 vitiligo patients and 128 healthy subjects .All re‐sults were statistically analyzed .Results The abnormal rates of FT3 ,TG‐Ab and TPO‐Ab in vitiligo patients were higher than healthy subjects (P<0 .05) ,which might be correlated with the age and gender of vilitigo patients .Conclusion Levels of thyroid function and autoantibody might be abnormal in vilitigo patients ,which could be more obvious in male and adolescent patients .It could be advantageous to screen thyroid function and antibody levels in patients with vitiligo .

Objective To investigate the infection status in patients with vitiligo.Methods A total of 434 patients with vitiligo were collected eligible data by a uniform questionnaire.Anti-HEV IgG and anti-HEV IgM were detected by enzyme-linked immunosorbent assay(ELISA).The correlation between the positive rate of anti-HEV IgG and sex,age,duration and immunology in-dex were analyzed.Results Out of the 434 patients,26.26％ of the total subjects were anti-HEV IgG positive.The positivity of anti-HEV IgG in adults and the progress of vitiligo patients was higher than that of teenagers and stabilization of vitiligo patients,the difference was statistically significant(P<0.05).Compared to the normal cases of IgA,IgG,C4,the positivity of anti-HEV IgG was significantly higher in the abnormal cases,the difference was statistically significant(P<0.05).Those 10 cases who were anti-HEV IgM positive,were anti-HEV IgG positive also.Conclusion The infection status in patients with vitiligo is serious and effective prevention strategies are required in future for reducing HEV transmission in these patients in order to reduce the incidence.