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    Glossary Hamilton-Norwood Scale

    classification system for male pattern baldness stages

    The Hamilton-Norwood Scale is a classification system used to measure the extent and pattern of male pattern baldness. It ranges from Stage 1, indicating minimal hair loss, to Stage 7, which represents the most severe form of hair loss with only a band of hair remaining around the sides and back of the scalp. This scale helps both laypeople and professionals understand and communicate the progression of hair loss in men.

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    1. Automated Classification of Male and Female Pattern Hair Loss Stages Using EfficientNet According to the Hamilton-Norwood and Ludwig Scale 2026
    2. Graft Survival by Norwood-Hamilton Stage: A Stratified Outcome Analys is of Follicular Unit Extraction Patients at Vera Clinic (2020–2025) International Journal of Innovative Science and Research Technology (IJISRT) · 2026
    3. Evaluation of DNA Variants Associated with Androgenetic Alopecia and Their Potential to Predict Male Pattern Baldness PLOS ONE · 2015 · 48 citations
    4. Validation and clinical relevance of a novel scalp coverage scoring method Skin Research and Technology · 2003 · 14 citations
    5. Sex Hormones and Hair Loss in Men From the General Population of Northeastern Germany. JAMA Dermatology · 2017 · 6 citations
    6. Androgenetic Alopecia and its Association with Metabolic Syndrome: A Systematic Review and Meta-analysis Acta medica Philippina · 2019 · 1 citations
    7. How I Do It: Ahmad’s NPRT System: A New Classification System for Documenting Male Pattern Baldness Hair transplant forum international · 2016 · 1 citations
    8. A Clinical Study of Androgenetic Alopecia Journal of Clinical Dermatology · 2004 · 1 citations
    9. Finasteride in the treatment of Taiwanese men with androgenetic alopecia: a 12-month open-label study. PubMed · 2002 · 1 citations
    10. Rethinking pattern hair loss classification in the era of trichoscopy and artificial intelligence Frontiers in Medicine · 2026
    11. Platelet-Rich Plasma Therapy in Male Androgenetic Alopecia: A Case Report and Contemporary Review Zenodo (CERN European Organization for Nuclear Research) · 2026
    12. Platelet-Rich Plasma Therapy in Male Androgenetic Alopecia: A Case Report and Contemporary Review Zenodo (CERN European Organization for Nuclear Research) · 2026
    13. The safety and efficacy of finasteride for transgender men with androgenetic alopecia: a case series Journal of Medical Case Reports · 2025
    14. CLINICAL INSIGHTS FOR HAIR RESTORATION: A CASE STUDY ON UC-MSCs DERIVED SECRETOME THERAPY IN ALOPECIA Cytotherapy · 2025
    15. A Comparative Assessment of Designs of Hairline Patterns in Patients Undergoing Hair Transplant Pakistan Journal of Medical & Health Sciences · 2023
    16. Efficacy of Oral Minoxidil in the Treatment of Androgenic Alopecia in Male Patients Presenting at a Tertiary Care Hospital Journal of Gandhara Medical and Dental Science · 2021
    17. 1465 骨材がコンクリートの乾燥収縮ひずみに及ぼす影響 : その1. 実験計画および実験結果(収縮・クリープ(5),材料施工) 学術講演梗概集. A-1, 材料施工 · 2010
    18. Assessment of efficacy of different botulinum toxin A concentrations in the treatment of androgenetic alopecia assessed by dermoscopy Journal of Cosmetic Dermatology · 2023
    19. Prevalence and Clinical Characteristics of Androgenetic Alopecia in Nepalese Patients: A Cross-sectional Observational Study Civil Medical Journal · 2023
    20. Clinical and metabolic characteristics of males with early-onset androgenetic alopecia. PubMed · 2022
    21. Clinical efficacy of microneedle combined with 5% Minoxidil solution and finasteride in the treatment of androgenetic alopecia in males Archives of Dermatological Research · 2025
    22. Androgenetic alopecia in COVID-19: Compared to age-matched epidemiologic studies and hospital outcomes with or without the Gabrin sign Journal of The American Academy of Dermatology · 2020 · 32 citations
    23. The type of androgenetic alopecia and quality of life (QoL) in male patients Journal of the Medical Sciences · 2022
    24. Efficacy and safety of platelet rich plasma therapy in male androgenetic alopecia Journal of Pakistan Association of Dermatology · 2020
    25. Diagnosis of Hair Disorders Seminars in Cutaneous Medicine and Surgery · 2009 · 73 citations
    26. Male balding is a major risk factor for severe COVID-19 Journal of The American Academy of Dermatology · 2020 · 29 citations
    27. Does degree of baldness influence vitamin D status? Medical Journal of Australia · 2008 · 19 citations
    28. Perception of Baldness and Hair Density Dermatology · 2002 · 16 citations
    29. Male-Pattern Baldness in Men with X-Linked Recessive Ichthyosis Dermatology · 2000 · 16 citations
    30. Evaluation of the Expression of Genes Associated with Inflammation and Apoptosis in Androgenetic Alopecia by Targeted RNA-Seq Skin appendage disorders · 2017 · 8 citations