EfficientNet improves accuracy in diagnosing hair loss stages.
16 citations
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October 2012 in “The Journal of Dermatology” This study found that the BASP classification system for pattern hair loss showed better reproducibility and repeatability compared to the Norwood-Hamilton classification.
September 2020 in “Hair transplant forum international” This article memorializes Dr. O'Tar T. Norwood and highlights his contributions to the field of hair restoration surgery; it does not report new research findings.
5 citations
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July 2000 in “Southern Medical Journal” This review discusses available treatments for androgenetic alopecia in men, like finasteride and 5% minoxidil, and notes that hair growth results are unpredictable and often driven by industry-sponsored studies.
August 2023 in “Clinical, Cosmetic and Investigational Dermatology” In this study, the Hamilton-Norwood subtype of female pattern hair loss was associated with early onset and polycystic ovary syndrome, while the Ludwig pattern was more common overall.
101 citations
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January 2016 in “Journal of Cutaneous and Aesthetic Surgery” This review discusses various classification systems for patterned hair loss in both sexes and reports no new clinical findings, highlighting the Hamilton-Norwood and Ludwig systems as the most commonly used.
16 citations
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January 2000 in “Dermatology” This study found that men with X-linked recessive ichthyosis did not show mutual exclusivity with androgenetic alopecia, as some exhibited advanced hair loss.
9 citations
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January 2017 in “International Journal of Trichology” This review discusses various classification systems for male-pattern hair loss, comparing their detail, practicality, and reproducibility, and reports no new clinical outcomes.
9 citations
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November 1993 in “Journal of The American Academy of Dermatology” Some men can have female pattern baldness without hormonal abnormalities or signs of feminization.
6 citations
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May 2006 in “Skinmed” This article reviews the classification history of androgenic alopecia and highlights the need for further research to find effective hair growth medications.
5 citations
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January 1995 in “Journal of Investigative Dermatology” A trial found that using finasteride, a hair growth drug, can be effectively measured by comparing before and after photos.
1 citations
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June 1987 in “British Journal of Dermatology” This article discusses patterned androgenic alopecia in normal women and reports no new clinical findings.
January 2024 in “International Ayurvedic medical journal” This study explores how Ayurveda concepts, specifically Prakruti, relate to male pattern baldness, suggesting that individual constitutional types may predict susceptibility to earlier hair loss when influenced by modern lifestyle factors.
November 2021 in “Journal of The American Academy of Dermatology” This study found that advanced stages of female pattern hair loss are associated with increased age, menopausal state, and hypertension, while acne vulgaris is more prevalent in earlier stages.
October 2021 in “DOAJ (DOAJ: Directory of Open Access Journals)” In this hospital-based cross-sectional study, researchers observed that trichoscopy effectively differentiates between severe and mild male pattern hair loss by identifying specific features such as yellow and white dots, vellus hair, and hair shaft diversity.
This study found that the patient receiving microneedling and platelet-rich plasma treatment showed earlier significant improvements and high satisfaction compared to the patient treated with microneedling and topical minoxidil.
January 2020 in “Skinmed” In this study, microneedling combined with platelet-rich plasma led to earlier improvements and high patient satisfaction in a man with androgenic alopecia, compared to microneedling with topical minoxidil.
June 2017 in “IP Indian journal of clinical and experimental dermatology” This study found that using a combination of 10% topical minoxidil, oral finasteride, and microneedling for six months effectively improved male pattern baldness with moderate to excellent responses and high patient satisfaction, without major side effects among the 25 participants.
Hair loss in women can be caused by genetics, menopause, certain health conditions, and emotional stress, and it often results in thinner hair and a changing hairline.
35 citations
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January 2000 in “Dermatology” In this study, Norwegian men aged 20-50 who perceived themselves as having more hair loss reported greater dissatisfaction and concern about aging compared to those without hair loss.
50 citations
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November 2010 in “Plastic and Reconstructive Surgery” This study suggests that Botox injections may increase hair count and reduce hair loss in men with androgenetic alopecia, potentially through increased blood flow and oxygen to the scalp.
48 citations
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May 2015 in “PLOS ONE” This study found that a genetic test using 5 to 20 SNPs can predict male pattern baldness with variable accuracy in European men, especially those aged 50 and older.
32 citations
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December 2004 in “BMC Public Health” This study found that trained observers using the Hamilton-Norwood classification were very reliable in assessing balding patterns, while men's self-assessments were moderately accurate compared to observers.
1 citations
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January 2017 in “대한피부과학회지” This study observed that male pattern hair loss patients are getting diagnosed earlier and presenting with milder forms, possibly due to early puberty, and noted frequent familial predisposition and comorbidities like seborrheic dermatitis.
1 citations
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September 2016 in “Hair transplant forum international” This article proposes enhancing the Norwood-Hamilton scale for assessing hair loss patterns but reports no new clinical results.
March 2026 in “Frontiers in Medicine” This study suggests that traditional classification systems for pattern hair loss, while useful in the past, have limitations in accuracy and reproducibility, and highlights the potential of integrating digital imaging and AI to create more precise and biologically informed classification frameworks.
December 2023 in “Journal of Asia Pacific Aesthetic Sciences” This study found that a novel method of isolating human follicle stem cells from hair follicles via mechanical centrifugation, without culture conditions, promises to improve hair density in patients with Androgenetic Alopecia and some cases of Alopecia Areata.
November 2023 in “Pakistan Journal of Medical & Health Sciences” In this cross-sectional study, researchers observed that patients undergoing hair transplant procedures showed significant improvements in hairline patterns, with most reverting to lower Norwood-Hamilton grades, after treatment at a tertiary care center in Balochistan, Pakistan.
April 2021 in “Journal of Investigative Dermatology” This trial found that intradermal injections of the Hair Stimulating Complex were well-tolerated and effectively stimulated hair growth and prevented hair loss in male pattern baldness participants over 18 weeks.
Botulinum toxin injections can reduce hair loss and stimulate new hair growth in some men with male pattern baldness.