Abstract

Laser hair removal and facial hair removal are popular methods all over the world today. On the other hand, the use of this treatment can have harmful effects on human health because hair growth is closely related to the activity of the thyroid gland and this gland has a significant role in this mechanism. In this regard, the present study was conducted to investigate the effect of laser hair treatment on thyroid function. The present study is a cross-sectional analytical study performed in a private Aesthetic and hair clinic. Seventy women were randomly selected for facial hair removal by two different methods of the diode laser system (n=140) and Alexandrite laser system (n=140) were included in the study. 7 cc of venous blood samples were taken from all patients before and at the end of laser treatment and after serum isolation in the laboratory, the levels of triiodothyronine, tetraiodothyronine and thyroid stimulating hormone, hemoglobin and total bilirubin were examined. In our study, 280 women in two groups of 140 patients were evaluated. The mean age of women was 35.24±12.5 in the Diode group and 35.49±12.8 in the Alexandrite group. Our results showed that the levels of triiodothyronine, tetraiodothyronine and thyroid stimulating hormones before laser treatment were not statistically different in the study groups and the concentration of thyroid hormones in each of the study groups before and after laser treatment was not statistically significant. There were no significant changes in mean hemoglobin and total bilirubin levels before and after laser therapy (p>0.05). Also, there were no significant differences among the groups of Diode or Alexandrite lasers in case of hemoglobin and total bilirubin (p>0.05). Based on the results of the present study, we concluded that the use of diode and alexandrite laser systems does not affect the concentration of thyroid hormones or hemoglobin and bilirubin.