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    Did you mean Terminal to Vellus Hair Ratio?
    Glossary Terminal to Vellus Hair Ratio

    proportion of thick hairs to fine hairs on the scalp

    The Terminal to Vellus Hair Ratio refers to the proportion of thick, pigmented hairs (terminal hairs) to fine, short, and lightly pigmented or non-pigmented hairs (vellus hairs) on the scalp or other parts of the body. This ratio is often used in the diagnosis and monitoring of hair loss conditions like androgenetic alopecia, where a decrease in the ratio indicates a shift from terminal to vellus hair, signifying hair thinning and miniaturization.

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    1. The reliability of horizontally sectioned scalp biopsies in the diagnosis of chronic diffuse telogen hair loss in women Journal of The American Academy of Dermatology · 2004 · 137 citations
    2. Follicular miniaturization in female pattern hair loss: clinicopathological correlations British Journal of Dermatology · 2006 · 100 citations
    3. Telogen Effluvium Dermatology · 2009 · 32 citations
    4. Scalp Biopsy and Diagnosis of Common Hair Loss Problems InTech eBooks · 2013 · 2 citations
    5. Chronic telogen effluvium: Increased scalp hair shedding in middle-aged women Journal of The American Academy of Dermatology · 1996 · 234 citations
    6. Correlation of trichoscopic findings with clinico-epidemiological factors in male pattern <span style="font-size: 1rem;">hairloss: A cross-sectional study from a tertiary care center in Chengalpattu</span> IP Indian Journal of Clinical and Experimental Dermatology · 2026
    7. Permanent Alopecia After Systemic Chemotherapy: A Clinicopathological Study of 10 Cases The American Journal of Dermatopathology · 2011 · 57 citations
    8. Trichoscopic Patterns of Scalp Dermatoses: An Observational Cross-sectional Study Journal of Clinical and Diagnostic Research · 2023
    9. Female-patterned alopecia in teenage brothers with unusual histologic features Journal of Cutaneous Pathology · 2006 · 6 citations
    10. Trichoscopy Archives of Dermatology · 2008 · 44 citations
    11. Non-Neoplastic Disorders of Hair Elsevier eBooks · 2010
    12. The Effect of Plasma Rich in Growth Factors on Pattern Hair Loss: A Pilot Study Dermatologic Surgery · 2017 · 70 citations
    13. Is TrichoScan a new diagnostic method for diffuse hair loss? Turkish Journal of Medical Sciences · 2014 · 2 citations
    14. Characteristic features of Japanese women's hair with aging and with progressing hair loss Journal of Dermatological Science · 2006 · 76 citations
    15. Concentrated Growth Factor from Autologous Platelet Promotes Hair Growth in Androgenetic Alopecia Journal of Biomedical Science and Engineering · 2019 · 1 citations
    16. Mapping the hair density, thickness, and volume in normal and androgenetic alopecia subjects with the digital microscope JEADV Clinical Practice · 2022
    17. Dermatoscopic features of central centrifugal cicatricial alopecia Journal of The American Academy of Dermatology · 2014 · 64 citations
    18. Dermoscopy in hair disorders Menoufia Medical Journal · 2014 · 12 citations
    19. The histopathology of alopecia areata in vertical and horizontal sections Dermatologic Therapy · 2001 · 19 citations
    20. Effects of Hormones and Endocrine Disorders on Hair Growth Cureus · 2022
    21. 9 Pilosebaceous physiology in relation to hirsutism and acne Clinics in endocrinology and metabolism · 1986 · 75 citations
    22. Efficacy of autologous stromal vascular fraction injection in the treatment of androgenic alopecia Archives of Dermatological Research · 2022 · 1 citations
    23. Sex differences in clinical trials of ALRV5XR treatment of androgenetic alopecia and telogen effluvium Frontiers in Medicine · 2022 · 1 citations
    24. Hormonal Effects on Hair Follicles International journal of molecular sciences · 2020 · 102 citations
    25. Endocrine Influences on Hair Growth The BMJ · 1965 · 68 citations
    26. Effects of a new mild shampoo for preventing hair loss in Asian by a simple hand-held phototrichogram technique International Journal of Cosmetic Science · 2011 · 9 citations
    27. HAIR DISEASES Medical Clinics of North America · 1998 · 28 citations
    28. Effects of Nano-cerium Oxide on the Levels of DHT, TGF-β, and IGF-1 in the Local Skin of AGA Model Mice and Efficacy Observation Journal of Contemporary Medical Practice · 2025
    29. Assessment of the efficacy and tolerability of a topical formulation containing caffeine and Procapil 3% for improvement of male pattern hair loss Journal of Cosmetic Dermatology · 2023
    30. Anatomy and Physiology of Hair InTech eBooks · 2017 · 14 citations