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Did you mean Hair Shaft Diameter Diversity?

GlossaryHair Shaft Diameter Diversity

variation in thickness of individual hair strands

Hair Shaft Diameter Diversity refers to the variation in the thickness of individual hair strands on a person's scalp. This diversity can be influenced by genetic factors, hormonal changes, and environmental conditions. For professionals, understanding this concept is crucial for diagnosing hair disorders and tailoring treatments, as variations in hair shaft diameter can impact the overall appearance and health of the hair.

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What Women Want: Quantifying the Perception of Hair Amount - An Analysis of Hair Diameter and Density Changes with Age in Caucasian Women

research What women want - quantifying the perception of hair amount: an analysis of hair diameter and density changes with age in caucasian women

61 citations , April 2012 in “British Journal of Dermatology”

Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.

research Parietal scalp is another affected area in female pattern hair loss: an analysis of hair density and hair diameter

30 citations , December 2017 in “Clinical, Cosmetic and Investigational Dermatology”

Parietal scalp area has lower hair density and smaller hair diameter in women with hair loss.

research Hair diameter evaluation in different regions of the safe donor area in Asian populations

9 citations , April 2017 in “International Journal of Dermatology”

Different areas of the scalp have varying hair thickness, useful for different types of hair transplant needs.

research Normal head-hair length is correlated with its diameter

4 citations , November 2004 in “Clinical and Experimental Dermatology”

Hair length and thickness are related, with thickness peaking at about a quarter of the hair's maximum length.

Hair Diameter Measurements for Planning Follicular Unit Extraction Surgery: Is There a Correlation Between the Micrometer Caliper and Scanning Electron Microscopy Findings?

research Hair diameter measurements for planning follicular unit extraction surgery (FUE): Is there a correlation between the micrometer caliper and scanning electron microscopy (SEM) findings?

3 citations , April 2021 in “Journal of Cosmetic Dermatology”

The micrometer caliper is a reliable tool for measuring hair diameter for FUE surgery.

research The Development and Application of the Hair Diameter Index (HDI)

3 citations , January 2021 in “Hair transplant forum international”

The Hair Diameter Index (HDI) was created to help plan hair restoration surgery after finding that visual hair density is linked to hair count and thickness, not volume.

research Hair diameter measurement methods: micrometer caliper versus phototrichogram

2 citations , April 2023 in “Archives of Aesthetic Plastic Surgery”

The phototrichogram is better for measuring hair thickness.

Donor Site of Follicular Unit Excision Hair Transplantation: The Relationship Between Appearance and Actual Hair Density, and Hair Diameter

research Donor site of follicular unit excision hair transplantation: the relationship between appearance and actual hair density, and hair diameter

2 citations , February 2020 in “Journal of Plastic Surgery and Hand Surgery”

Good-looking donor sites for hair transplants usually have higher hair density and thicker hair.

research HAIR DIAMETER IN FEMALE BALDNESS

63 citations , October 1972 in “British Journal of Dermatology”

Women with thinning hair have thinner hair strands than women without hair loss.

research Variation and Heritability in Hair Diameter and Curvature in an Australian Twin Sample

5 citations , June 2016 in “Twin research and human genetics”

Hair diameter and curvature are mostly determined by genetics.

Effect of Platelet-Rich Plasma on Scalp Hair Diameter

research Effect of platelets‐rich plasma on scalp hair diameter

4 citations , February 2018 in “Journal of Cosmetic Dermatology”

Platelet-rich plasma injections made hair thicker for both men and women, with a greater effect in women.

research Hair density, hair diameter and the prevalence of female pattern hair loss

1 citations , May 2002 in “British Journal of Dermatology”

Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.

research Rosmarinus officinalis Essential Oil Increases Hair Length and Follicle Diameter of Ultraviolet B-exposed Mice Through VEGF

August 2023 in “The Indonesian Biomedical Journal”

Rosemary essential oil improved hair growth and thickness in UVB-exposed mice.

research Hair density, hair diameter and the prevalence of female pattern hair loss: reply from authors

May 2002 in “British Journal of Dermatology”

Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.

research Lack of effect of spironolactone on hair shaft diameter in hirsute females

23 citations , July 1989 in “Postgraduate medical journal”

Spironolactone did not make hair thinner in women with excess hair growth.

research A Comparative Cross-Sectional Study of Hair Density and Hair Shaft Diameter of Different Severities of Anterior Scalp Marginal Traction Alopecia in Women

December 2024 in “Skin Appendage Disorders”

Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.

research Reduction of Diameter of Hair Shaft among Women with Hirsutism

April 2011 in “Global journal of health science”

Aldactone effectively reduces hair thickness in women with excessive hair growth, both alone and with other treatments.

research A clinico-trichoscopic analysis of hair density and diameter variability in relation to severity grading of female pattern hair loss

September 2022 in “International Journal of Trichology”

Trichoscopic measurements help determine the severity of female pattern hair loss.

Evidence from a Humanized Mouse Model of Androgenetic Alopecia That Platelet-Rich Plasma Stimulates Hair Regrowth, Hair Shaft Diameter, and Vellus-to-Terminal Hair Reconversion In Vivo

research Evidence from a humanized mouse model of androgenetic alopecia that platelet‐rich plasma stimulates hair regrowth, hair shaft diameter and vellus‐to‐terminal hair reconversion in vivo

March 2021 in “British Journal of Dermatology”

PRP helps hair regrowth and thickness.

research Reduction of Diameter of Hair Shaft among Women with Hirsutism

April 2011 in “Global journal of health science”

Spironolactone effectively makes hair shafts thinner in women with excessive hair growth.

research Hair Follicle Transcriptome Analysis Reveals Differentially Expressed Genes That Regulate Wool Fiber Diameter in Angora Rabbits

3 citations , March 2023 in “Biology”

Genes affecting wool fiber thickness in Angora rabbits were identified, which could help breed finer wool.

research Comparative Studies of the Diameters of Hairshafts in Anagen and in Telogen Phases in Male Adults Without Alopecia and in Male Adults With Androgenetic Alopecia

6 citations , January 1981

A Morphometric and Histologic Study of the Scalp in Psoriasis: Paradoxical Sebaceous Gland Atrophy and Decreased Hair Shaft Diameters Without Alopecia

research A morphometric and histologic study of the scalp in psoriasis. Paradoxical sebaceous gland atrophy and decreased hair shaft diameters without alopecia.

15 citations , May 1989 in “PubMed”

Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.

research Levonorgestrel effects on serum androgens, sex hormone–binding globulin levels, hair shaft diameter, and sexual function

20 citations , April 2009 in “Fertility and Sterility”

research Female pattern hair loss

226 citations , September 2001 in “Journal of The American Academy of Dermatology”

Hair loss in women is genetic, diagnosed by examination and biopsy, and treated with minoxidil, finasteride, or transplantation.

research Theoretical considerations in laser hair removal

150 citations , April 1999 in “Dermatologic Clinics”

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

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Related Terms

Research

research What women want - quantifying the perception of hair amount: an analysis of hair diameter and density changes with age in caucasian women

research Parietal scalp is another affected area in female pattern hair loss: an analysis of hair density and hair diameter

research Hair diameter evaluation in different regions of the safe donor area in Asian populations

research Normal head-hair length is correlated with its diameter

research Hair diameter measurements for planning follicular unit extraction surgery (FUE): Is there a correlation between the micrometer caliper and scanning electron microscopy (SEM) findings?

research The Development and Application of the Hair Diameter Index (HDI)

research Hair diameter measurement methods: micrometer caliper versus phototrichogram

research Donor site of follicular unit excision hair transplantation: the relationship between appearance and actual hair density, and hair diameter

research HAIR DIAMETER IN FEMALE BALDNESS

research Variation and Heritability in Hair Diameter and Curvature in an Australian Twin Sample

research Effect of platelets‐rich plasma on scalp hair diameter

research Hair density, hair diameter and the prevalence of female pattern hair loss

research Rosmarinus officinalis Essential Oil Increases Hair Length and Follicle Diameter of Ultraviolet B-exposed Mice Through VEGF

research Hair density, hair diameter and the prevalence of female pattern hair loss: reply from authors

research Lack of effect of spironolactone on hair shaft diameter in hirsute females

research A Comparative Cross-Sectional Study of Hair Density and Hair Shaft Diameter of Different Severities of Anterior Scalp Marginal Traction Alopecia in Women

research Reduction of Diameter of Hair Shaft among Women with Hirsutism

research A clinico-trichoscopic analysis of hair density and diameter variability in relation to severity grading of female pattern hair loss

research Evidence from a humanized mouse model of androgenetic alopecia that platelet‐rich plasma stimulates hair regrowth, hair shaft diameter and vellus‐to‐terminal hair reconversion in vivo

research Reduction of Diameter of Hair Shaft among Women with Hirsutism

research Hair Follicle Transcriptome Analysis Reveals Differentially Expressed Genes That Regulate Wool Fiber Diameter in Angora Rabbits

research Comparative Studies of the Diameters of Hairshafts in Anagen and in Telogen Phases in Male Adults Without Alopecia and in Male Adults With Androgenetic Alopecia

research A morphometric and histologic study of the scalp in psoriasis. Paradoxical sebaceous gland atrophy and decreased hair shaft diameters without alopecia.

research Levonorgestrel effects on serum androgens, sex hormone–binding globulin levels, hair shaft diameter, and sexual function

research Female pattern hair loss

research Theoretical considerations in laser hair removal

research The Effect of Plasma Rich in Growth Factors on Pattern Hair Loss: A Pilot Study

research Role of Trichoscopy in Children's Scalp and Hair Disorders

research Use of the TrichoScan to Assess Female Pattern Hair Loss

research The Cross-section Trichometer: A New Device for Measuring Hair Quantity, Hair Loss, and Hair Growth