Vitamin D Level and Telogen Hair Loss: A Case-Control Study

This case-control study, conducted from December 2018 to June 2020, involved 250 women, 100 of whom had telogen effluvium (a type of hair loss), and 150 who were seeking treatment for skin conditions like nevi or skin tags. The study aimed to determine the association between telogen effluvium and vitamin D levels. The results showed that the mean level of Vitamin D was significantly lower in the group with telogen effluvium (11.16±4.49) compared to the control group (18.98±10.65), with a P value <0.001. The study concluded that a deficiency in vitamin D may be a leading cause of telogen effluvium among women with hair loss. Furthermore, low levels of vitamin D were more common among housewives, urban women, and symptomatic patients with acute duration.