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Did you mean Norwood-Hamilton classification?

GlossaryHamilton-Norwood Scale (Norwood-Hamilton classification)

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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research Reliability of the Pattern Hair Loss Classifications: A Comparison of the Basic and Specific and Norwood–Hamilton Classifications

16 citations, October 2012 in “The Journal of Dermatology”

The BASP classification is more reliable than the Norwood-Hamilton for classifying hair loss in men and women.

research Classifications of Patterned Hair Loss: A Review

101 citations, January 2016 in “Journal of Cutaneous and Aesthetic Surgery”

Different types of hair loss need specific treatments, and while many classification systems exist, each has its flaws; more research is needed to refine these systems and treatments.

research Safety and Efficacy of a Novel Skin Lightening Agent for Melasma

June 2017 in “Journal of The American Academy of Dermatology”

The new treatment was safe and may effectively treat male pattern hair loss.

research Classification of Male-Pattern Hair Loss

9 citations, January 2017 in “International Journal of Trichology”

No current system perfectly classifies male-pattern hair loss, indicating a need for a new system for better diagnosis and treatment.

research Long-Term (10-Year) Efficacy of Finasteride in 523 Japanese Men with Androgenetic Alopecia

8 citations, January 2019 in “Clinical research and trials”

Finasteride is effective and safe for long-term treatment of hair loss in Japanese men.

Assessment of Efficacy of Different Botulinum Toxin A Concentrations in the Treatment of Androgenetic Alopecia Assessed by Dermoscopy

research Assessment of Efficacy of Different Botulinum Toxin A Concentrations in the Treatment of Androgenetic Alopecia Assessed by Dermoscopy

August 2023 in “Journal of Cosmetic Dermatology”

Higher concentration of botulinum toxin A is safe and effective for treating hair loss in men and women.

research Application of the Basic and Specific Classification on Patterned Hair Loss in Indians

8 citations, January 2013 in “International Journal of Trichology”

The BASP classification is effective for diagnosing pattern hair loss in Indian men and women.

research A Semiquantitative Grading Scale for Frontal and Vertex of Androgenetic Alopecia

2 citations, December 2018 in “International Journal of Dermatology”

New grading scale accurately measures hair loss severity and treatment effectiveness.

research Modified Basic And Specific (BASP) Classification For Pattern Hair Loss

2 citations, June 2019 in “International Journal of Dermatology”

The modified hair loss classification is more detailed but less user-friendly.

research Clinical Experience on Follicular Unit Extraction Megasession for Severe Androgenetic Alopecia

4 citations, September 2019 in “Journal of Cosmetic Dermatology”

FUE megasession effectively treats severe hair loss with natural-looking results in one operation.

research Setting Reference Values in Trichology

3 citations, October 2015 in “International Journal of Dermatology”

Normal hair density and diameter ratios were established to help diagnose adult hair loss.

research Interventions for Female Pattern Hair Loss

21 citations, May 2016 in “The Cochrane library”

Topical minoxidil helps treat female pattern hair loss, but more research needed for other treatments.

research Photobiomodulation Therapy for Androgenetic Alopecia: A Clinician’s Guide to Home-Use Devices Cleared by the FDA

15 citations, October 2017 in “Journal of Cosmetic and Laser Therapy”

FDA-cleared devices may help treat hair loss, but more research needed; consult dermatologist before use.

research Relationship Between Androgenetic Alopecia and Cardiovascular Risk Factors According to BASP Classification in Koreans

14 citations, March 2016 in “Journal of Dermatology”

Hair loss links to high blood pressure, high fat levels, and metabolic issues, suggesting early heart disease screening.

research Shedding Light on the FDA’s 510(k) Approvals Process: Low-Level Laser Therapy Devices Used in the Treatment of Androgenetic Alopecia

6 citations, September 2018 in “Journal of Dermatological Treatment”

LLLT devices for hair loss need more research to define proper guidelines.

research Lasers in Hair Growth and Hair Transplantation

January 2018 in “Springer eBooks”

Lasers are less favored for hair transplant surgery but show promise for hair growth in controlled trials.

Association Between Androgenetic Alopecia and Cardiovascular Risk Factors According to BASP Classification in Korean Androgenetic Alopecia

research Association Between Androgenetic Alopecia and Cardiovascular Risk Factors According to BASP Classification in Korean Androgenetic Alopecia

January 2016

Korean patients with androgenetic alopecia may have a higher risk of heart-related health issues and could benefit from early heart screening and healthier lifestyles.

Efficacy of Platelet-Rich Plasma in Conjunction with Photobiomodulation by Low-Level Laser Therapy Versus Platelet-Rich Plasma in Androgenic Alopecia

research Efficacy of Platelet-Rich Plasma in Conjunction with Photobiomodulation by Low-Level Laser Therapy Versus Platelet-Rich Plasma in Androgenic Alopecia

February 2024

Combining PRP with low-level laser therapy is better for hair growth than PRP alone.

research Dermoscopy Is the Crucial Step for Proper Outcome Prospection When Treating Androgenetic Alopecia with the Regenera Protocol: A Score Proposal

1 citations, January 2018 in “International Journal of Clinical and Developmental Anatomy”

Dermoscopy improves accuracy in predicting treatment success for androgenetic alopecia with the Regenera® protocol.

research Androgenetic Alopecia and Coronavirus Infection

August 2021 in “Consilium medicum”

COVID-19 may worsen hair loss, but treatments like minoxidil can help.

research The Effects of Smoking on Hair Health: A Systematic Review

5 citations, January 2021 in “Skin appendage disorders”

Smoking is linked to more hair loss and premature graying compared to nonsmokers.

Exhaustive Analysis of Scalp Hair Regression: Subjective and Objective Perception from Initial Hair Loss to Severe Miniaturization and Drug-Induced Regrowth

research Exhaustive Analysis of Scalp Hair Regression: Subjective and Objective Perception from Initial Hair Loss to Severe Miniaturization and Drug-Induced Regrowth

3 citations, January 2021 in “Plastic and Aesthetic Research”

Hair loss reduces hair thickness and coverage, but drug treatments mainly revive dormant hairs rather than reverse thinning; patients often undervalue their hair loss severity.

research Differences in Demographic and Clinical Characteristics Among Subtypes of Female Pattern Hair Loss

August 2023 in “Clinical, Cosmetic and Investigational Dermatology”

Different types of female pattern hair loss have unique characteristics and are associated with various health conditions.

research Male Pattern Androgenetic Alopecia in an Indian Context: A Perspective Study

28 citations, March 2007 in “Journal of The European Academy of Dermatology and Venereology”

At least 87% of Indian men experience hair loss, with type II being most common and severity increasing with age.

research Diversity of Hair Growth Profiles

115 citations, September 2005 in “International Journal of Dermatology”

Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.

Evaluation of Long-Term Efficacy of Finasteride in Korean Men with Androgenetic Alopecia Using the Basic and Specific Classification System

research Evaluation of Long-Term Efficacy of Finasteride in Korean Men with Androgenetic Alopecia Using the Basic and Specific Classification System

11 citations, December 2018 in “Journal of Dermatology”

Finasteride effectively treats hair loss in Korean men for at least 5 years, with V type responding better.

research Insulin-Like Growth Factor-1: Roles in Androgenetic Alopecia

27 citations, March 2014 in “Experimental Dermatology”

IGF-1 affects hair loss and could be a potential treatment.

research An Investigation of Crosstalk Between Wnt/β-Catenin and Transforming Growth Factor-β Signaling in Androgenetic Alopecia

18 citations, July 2016 in “Medicine”

Wnt/β-catenin and TGF-β pathways affect hair loss, and activating Wnt/β-catenin could be a potential treatment.

Preclinical and Clinical Studies Demonstrate That the Proprietary Herbal Extract DA-5512 Effectively Stimulates Hair Growth and Promotes Hair Health

research Preclinical and Clinical Studies Demonstrate That the Proprietary Herbal Extract DA-5512 Effectively Stimulates Hair Growth and Promotes Hair Health

11 citations, January 2017 in “Evidence-based Complementary and Alternative Medicine”

DA-5512 effectively improves hair growth and health, performing better than minoxidil.

research Scalp Biophysical Characteristics in Males with Androgenetic Alopecia: A Comparative Study with Healthy Controls

12 citations, May 2021 in “Clinical Interventions in Aging”

Men with androgenetic alopecia have oilier and less hydrated scalps, especially in sensitive areas.