The role of psychological factors and serum zinc, folate and vitamin B₁₂levels in the aetiology of trichodynia: a case-control study

Abstract

Trichodynia is a commonly encountered symptom in patients with diffuse alopecia, and depression and somatoform dissociation disorders may play an important role in its aetiology. Our data provide no evidence that serum levels of zinc, folate or vitamin B(12) are involved in the pathogenesis of trichodynia.