TLDR Some people with chronic hair loss may have thyroid autoimmunity.
The document reported on two studies, with the first study revealing that thyroid peroxidase antibodies (TPO-Ab) were present in 24.1% of 97 patients with chronic telogen effluvium (TE) and TE + androgenetic alopecia (AGA), suggesting an autoimmune component in the pathogenesis of TE. This prevalence was notably higher in women at 29%. The control group, consisting of 36 individuals with alopecia areata (AA), showed a 38.9% prevalence of TPO-Ab. The second study was unrelated to hair loss and detailed a case of a 70-year-old man with a scalp lesion that was a collision tumor of pigmented basal cell carcinoma and melanoma, diagnosed through dermoscopic features.
24 citations,
March 2009 in “Journal of the European Academy of Dermatology and Venereology” Scalp pain is a common symptom in people with active hair loss from telogen effluvium.
63 citations,
October 2005 in “Archives of Dermatology” Shorter, thinner hairs indicate AGA, while longer, thicker hairs suggest CTE; counting and measuring shed hairs helps diagnose hair loss type.
29 citations,
January 1993 in “Dermatologic Clinics” Certain medications and maintaining adequate iron levels can help manage women's hair loss.
2 citations,
January 2023 in “Journal of Clinical Medicine” People with hair loss conditions may also have thyroid disorders, but more research is needed to understand the connection.
3 citations,
January 2010 in “Journal of The European Academy of Dermatology and Venereology” Many people diagnosed with androgenic alopecia might actually have hidden scarring or inflammation.
January 2008 in “Springer eBooks” Thyroid disease can cause hair loss and treating thyroid problems might help with hair disorders.
8 citations,
December 2013 in “Journal of Investigative Dermatology Symposium Proceedings” Hepatitis C treatment may trigger complete hair loss, especially in those with a history of patchy hair loss, but hair usually grows back within a year.
41 citations,
August 2007 in “European Journal of Gastroenterology & Hepatology” A woman's total hair loss from hepatitis C treatment grew back after stopping the medication.