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GlossaryTerminal Hair

thick, coarse, pigmented hair found on the scalp and body

Terminal hair refers to the thick, coarse, and pigmented hair that develops during puberty and is found on various parts of the body, such as the scalp, eyebrows, eyelashes, and, in adults, the armpits and pubic region. Unlike vellus hair, which is fine and light, terminal hair is more robust and plays a role in providing protection and insulation.

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The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

47 citations, September 2008 in “British Journal of Dermatology”

Ludwig pattern hair loss in women results from varying sensitivity in hair follicles, causing fewer visible hairs.

research Reduced Linear Hair Growth Rates of Vellus and Terminal Hairs Produced by Human Balding Scalp Grafted onto Nude Mice

23 citations, December 1991 in “Annals of the New York Academy of Sciences”

Balding scalps slow down hair growth.

research Hair Regrowth in Male and Female Pattern Hair Loss Does Not Involve the Conversion of Vellus Hair to Terminal Hair

14 citations, January 2016 in “Experimental Dermatology”

Hair regrowth doesn't convert thin hairs to thick hairs, but increases overall hair density.

research Minoxidil-Induced Trichostasis Spinulosa of Terminal Hair

13 citations, December 2010 in “Archives of Dermatology”

Minoxidil use can cause trichostasis spinulosa in long-term hair loss patients.

Pattern Hair Loss: Assessment of Microinflammation in Miniaturized and Terminal Hair Follicles Through Horizontal Histologic Sections

research Pattern Hair Loss: Assessment of Microinflammation in Miniaturized and Terminal Hair Follicles Through Horizontal Histologic Sections

11 citations, April 2020 in “Journal of The American Academy of Dermatology”

Microinflammation is more intense in smaller hair follicles and may be linked to hair loss.

Expression of the L-Fucose Moiety on Infrainfundibular Follicular Keratinocytes of Terminal Follicles, Its Decreased Expression on Vellus and Indeterminate Follicles of Androgenetic Alopecia, and Re-Expression in Drug-Induced Hair Regrowth

research Expression of the L-Fucose Moiety on Infrainfundibular Follicular Keratinocytes of Terminal Follicles, Its Decreased Expression on Vellus and Indeterminate Follicles of Androgenetic Alopecia, and Re-Expression in Drug-Induced Hair Regrowth

9 citations, January 1992 in “Journal of Investigative Dermatology”

Sugar molecule helps hair growth, less in balding, returns with treatment.

research Hidradenitis Suppurativa, Acne Inversa, Dissecting Terminal Hair Folliculitis

1 citations, January 2019 in “Springer eBooks”

Hidradenitis Suppurativa is a chronic skin condition best treated early with surgery for better outcomes and less recurrence.

research Acute Encephalomyelitis Syndromes Associated with H1N1 Influenza Vaccinations; Erythema Multiforme Secondary to H1N1 Vaccine; Cytolytic Hepatitis Possibly Related to Oral Contraceptives; Drug Rash with Eosinophilia and Systemic Symptoms (DRESS) Syndrome Associated with Lamotrigine: First Report; Behavioral Disinhibition with Baclofen; Minoxidil-Induced Trichostasis Spinulosa of Terminal Hair; Delayed-Onset Mirtazapine-Related Leukopenia

1 citations, March 2011 in “Hospital Pharmacy”

Various medications and vaccines can cause serious side effects.

The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of Female Pattern Hair Loss Assessed by Trichoscan in a Sample of Chinese Population

research The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of Female Pattern Hair Loss Assessed by Trichoscan in a Sample of Chinese Population

1 citations, December 2022 in “Clinical, Cosmetic and Investigational Dermatology”

Midscalp hair density and terminal hair percentage are good indicators of female pattern hair loss severity.

research Phylloid Terminal Hair Nevus: A Unique Clinical Entity

August 2018 in “Pediatric Dermatology”

A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.

research Vellus-to-Terminal Hair Follicle Reconversion in Male Pattern Balding in a New Humanized Mouse Model of Androgenetic Alopecia and Its Promotion by Minoxidil and PRP

November 2022 in “Journal of Investigative Dermatology”

Minoxidil and PRP can help convert miniaturized hair follicles back to normal in male pattern baldness.

research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

January 2009 in “The Year book of dermatology”

Ludwig pattern hair loss results from varying androgen sensitivity, causing fewer thick hairs and more thin hairs.

research A Function for Rac1 in the Terminal Differentiation and Pigmentation of Hair

11 citations, January 2012 in “Journal of cell science”

Rac1 is essential for proper hair structure and color.

research Viable Terminal Scalp Hair Follicles Are Necessary and Sufficient for Clinical Efficacy of Finasteride in Male Pattern Hair Loss

6 citations, June 2019 in “Skin Research and Technology”

Finasteride works for hair loss by maintaining existing hair follicles, not reversing miniaturization.

research Vertex and Occipital Intermediate and Terminal Hair Follicles from Androgenetic Alopecia Patients are Differentially Affected by Testosterone Ex Vivo

November 2022 in “Journal of Investigative Dermatology”

Occipital hair follicles in male pattern baldness respond uniquely to testosterone, not androgen-insensitive.

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.

Maintenance of Optimized Hair Growth from Viable Terminal Scalp Hair Follicles at Baseline with Oral Finasteride in Male Pattern Hair Loss and First Evidence of a Drug Dependency and a Post-Finasteride Rebound Effect

research Maintenance of Optimized Hair Growth from Viable Terminal Scalp Hair Follicles at Baseline with Oral Finasteride in Male Pattern Hair Loss and First Evidence of a Drug Dependency and a Post-Finasteride Rebound Effect

4 citations, May 2019 in “Skin Research and Technology”

Finasteride helps hair growth but stopping it causes faster hair loss.

Vellus-To-Terminal Hair Follicle Reconversion Occurs In Male Pattern Balding And Is Promoted By Minoxidil And Platelet-Rich Plasma: In Vivo Evidence From A New Humanized Mouse Model Of Androgenetic Alopecia

research Vellus-To-Terminal Hair Follicle Reconversion Occurs In Male Pattern Balding And Is Promoted By Minoxidil And Platelet-Rich Plasma: In Vivo Evidence From A New Humanized Mouse Model Of Androgenetic Alopecia

October 2023 in “Acta dermato-venereologica”

Minoxidil and platelet-rich plasma can help turn thin hair into thicker hair in male pattern baldness.

research Vellus-To-Terminal Hair Follicle Reconversion Does Occur In Male Pattern Balding In A New Humanized Mouse Model Of Androgenetic Alopecia And Is Promoted By Minoxidil And PRP

September 2022

research Penetration Profile of Microspheres in Follicular Targeting of Terminal Hair Follicles

316 citations, June 2004 in “The journal of investigative dermatology/Journal of investigative dermatology”

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

research Topical Diclofenac 3% Gel for Actinic Keratosis May Induce Terminal Hair in Male Androgenetic Alopecia: A Report of Three Cases

December 2015 in “Journal of skin and stem cell”

Using a gel called Diclofenac can potentially cause hair to grow back in bald spots in older men.

research ESDR564 – Vertex and Occipital Intermediate and Terminal Hair Follicles from Androgenetic Alopecia Patients are Differentially Affected by Testosterone Ex Vivo

September 2022

Occipital Involvement in Female Pattern Hair Loss: Histopathological Evidence

research Androgens and Human Hair Growth

157 citations, April 1994 in “Clinical endocrinology”

Androgens can cause hair growth in some areas and hair loss on the scalp.

Efficacy and Safety of a Low-Level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-Controlled, Double-Blind Study

research Efficacy and Safety of a Low-Level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-Controlled, Double-Blind Study

147 citations, January 2014 in “American Journal of Clinical Dermatology”

Laser device increases hair density, safe for treating hair loss in men and women.

Measuring Reversal of Hair Miniaturization in Androgenetic Alopecia by Follicular Counts in Horizontal Sections of Serial Scalp Biopsies: Results of Finasteride 1mg Treatment of Men and Postmenopausal Women

research Measuring Reversal of Hair Miniaturization in Androgenetic Alopecia by Follicular Counts in Horizontal Sections of Serial Scalp Biopsies: Results of Finasteride 1mg Treatment of Men and Postmenopausal Women

145 citations, December 1999 in “Journal of Investigative Dermatology Symposium Proceedings”

Finasteride 1mg helps reverse hair miniaturization in men and postmenopausal women.

research Hair Anatomy for the Clinician

139 citations, July 1991 in “Journal of The American Academy of Dermatology”

Understanding hair follicle anatomy helps diagnose hair disorders.

research Hair Density in African Americans

129 citations, June 1999 in “Archives of Dermatology”

African Americans have less hair density than whites.

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Related Terms

Research

research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

research Reduced Linear Hair Growth Rates of Vellus and Terminal Hairs Produced by Human Balding Scalp Grafted onto Nude Mice

research Hair Regrowth in Male and Female Pattern Hair Loss Does Not Involve the Conversion of Vellus Hair to Terminal Hair

research Minoxidil-Induced Trichostasis Spinulosa of Terminal Hair

research Pattern Hair Loss: Assessment of Microinflammation in Miniaturized and Terminal Hair Follicles Through Horizontal Histologic Sections

research Expression of the L-Fucose Moiety on Infrainfundibular Follicular Keratinocytes of Terminal Follicles, Its Decreased Expression on Vellus and Indeterminate Follicles of Androgenetic Alopecia, and Re-Expression in Drug-Induced Hair Regrowth

research Hidradenitis Suppurativa, Acne Inversa, Dissecting Terminal Hair Folliculitis

research The Predictive Value of Midscalp Hair Density and Terminal Hair Percentage in the Severity Evaluation of Female Pattern Hair Loss Assessed by Trichoscan in a Sample of Chinese Population

research Phylloid Terminal Hair Nevus: A Unique Clinical Entity

research Vellus-to-Terminal Hair Follicle Reconversion in Male Pattern Balding in a New Humanized Mouse Model of Androgenetic Alopecia and Its Promotion by Minoxidil and PRP

research The Ludwig Pattern of Androgenetic Alopecia Is Due to a Hierarchy of Androgen Sensitivity Within Follicular Units That Leads to Selective Miniaturization and a Reduction in the Number of Terminal Hairs Per Follicular Unit

research A Function for Rac1 in the Terminal Differentiation and Pigmentation of Hair

research Viable Terminal Scalp Hair Follicles Are Necessary and Sufficient for Clinical Efficacy of Finasteride in Male Pattern Hair Loss

research Vertex and Occipital Intermediate and Terminal Hair Follicles from Androgenetic Alopecia Patients are Differentially Affected by Testosterone Ex 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

research Maintenance of Optimized Hair Growth from Viable Terminal Scalp Hair Follicles at Baseline with Oral Finasteride in Male Pattern Hair Loss and First Evidence of a Drug Dependency and a Post-Finasteride Rebound Effect

research Vellus-To-Terminal Hair Follicle Reconversion Occurs In Male Pattern Balding And Is Promoted By Minoxidil And Platelet-Rich Plasma: In Vivo Evidence From A New Humanized Mouse Model Of Androgenetic Alopecia

research Vellus-To-Terminal Hair Follicle Reconversion Does Occur In Male Pattern Balding In A New Humanized Mouse Model Of Androgenetic Alopecia And Is Promoted By Minoxidil And PRP

research Penetration Profile of Microspheres in Follicular Targeting of Terminal Hair Follicles

research Topical Diclofenac 3% Gel for Actinic Keratosis May Induce Terminal Hair in Male Androgenetic Alopecia: A Report of Three Cases

research ESDR564 – Vertex and Occipital Intermediate and Terminal Hair Follicles from Androgenetic Alopecia Patients are Differentially Affected by Testosterone Ex Vivo

research Occipital Involvement in Female Pattern Hair Loss: Histopathological Evidence

research Hair And Nails: Studies On Hair Loss, Chemical Matrixectomy, And Hair Transplantation Techniques

research Chronic Telogen Effluvium: Increased Scalp Hair Shedding in Middle-Aged Women

research Androgens and Human Hair Growth

research Efficacy and Safety of a Low-Level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-Controlled, Double-Blind Study

research Measuring Reversal of Hair Miniaturization in Androgenetic Alopecia by Follicular Counts in Horizontal Sections of Serial Scalp Biopsies: Results of Finasteride 1mg Treatment of Men and Postmenopausal Women

research Hair Anatomy for the Clinician

research Hair Density in African Americans