Evaluation of Zinc, Vitamin B12, Folic Acid, and Iron Levels and Thyroid Functions in Patients with Chronic Telogen Effluvium

In 2015, a study involving 260 patients with Chronic Telogen Effluvium (CTE), a hair disorder causing excessive hair shedding, was conducted to examine their serum zinc, vitamin B12, folic acid levels, iron metabolism parameters, and thyroid functions. These were compared with a control group of 117 healthy volunteers. The study found that only the iron metabolism parameters were significantly lower in the patients with CTE compared to the controls. Therefore, the researchers recommended primarily screening for iron deficiency in patients with CTE. There were no significant differences in the levels of zinc, vitamin B12, folic acid, and thyroid function between the patients and the control group.