Evaluation of Association of Vitamin D in Alopecia Areata: A Case-control Study of 100 Patients in a Tertiary Rural Hospital of Southern India.

Background: Alopecia areata is a common autoimmune disorder which is characterized by non-scarring hair loss. Vitamin D plays an important role in immune regulation, cell growth, differentiation, and maintenance of hair cycle.

Aims And Objectives: (1) To evaluate serum vitamin D levels in alopecia areata.