Trichoscopy as a Non-Invasive Tool for the Diagnosis of Deficiencies of Vitamin B12, Vitamin D3, and Serum Ferritin

This study evaluated the effectiveness of trichoscopy as a non-invasive method to identify deficiencies in Vitamin B12, Vitamin D3, and serum ferritin in 50 patients with Telogen Effluvium (TE). The results showed significant correlations between serum Vitamin D3 and Vitamin B12 levels, as well as between Vitamin D3 and ferritin levels. Specific trichoscopic patterns, such as the presence of few vellus hairs, were significantly associated with these deficiencies. The study concludes that trichoscopy can aid in the early diagnosis and management of these nutritional deficiencies, potentially reducing the need for invasive blood tests.