January 2026 in “JAAD International”
May 2023 in “Journal of The American Academy of Dermatology” Most lab tests for patients with Telogen effluvium, a type of hair loss, show no or mild abnormalities; only a few specific tests are useful.
February 2025 in “Journal of Cosmetic Dermatology” Ferritin and vitamin B12 deficiencies are common causes of hair loss in women aged 18-45.
June 2024 in “Archives of dermatological research” Targeted testing for telogen effluvium patients can save healthcare costs.
January 2022 in “International Journal of Medicine in Developing Countries” Many patients with hair loss had low iron and vitamin D levels, but thyroid issues were not common.