Skin ages and changes due to sun, wind, and aging, causing dryness, thinning, and hair loss.
January 2004 in “Nederlands Tijdschrift voor Dermatologie & Venereologie” Female pattern hair loss causes thinning hair on top of the scalp, treatable with limited success.
35 citations
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March 2014 in “British Journal of Dermatology” Hair loss in male pattern baldness involves muscle degeneration and increased scalp fat.
35 citations
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January 2006 in “Dermatology Online Journal” Lipedematous scalp may be underdiagnosed and doesn't improve with finasteride.
2 citations
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May 2018 in “Journal of The American Academy of Dermatology” Hypothyroidism patients with hair loss typically have thinning hair, smaller hair follicles, and normal hair shedding.
2 citations
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January 2017 in “International Journal of Trichology” Trichoscopy can reveal specific hair and scalp changes in linear morphea.
1 citations
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December 2018 in “Journal of Cosmetic Dermatology” Men with thinner hair from genetic hair loss may be more likely to have an enlarged prostate.
42 citations
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December 1990 in “The Journal of Dermatologic Surgery and Oncology” The study found that horizontal sections of scalp biopsies are better for analyzing hair loss, showing fewer hairs and more fine hairs in balding areas.
41 citations
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December 2008 in “International Journal of Dermatology” South Korean women with hair loss have lower hair density and thickness compared to healthy women.
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.
30 citations
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December 2017 in “Clinical, Cosmetic and Investigational Dermatology” Parietal scalp area has lower hair density and smaller hair diameter in women with hair loss.
9 citations
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June 2017 in “Journal of Cutaneous Pathology” People with pemphigus vulgaris and pemphigus foliaceus often have smaller sebaceous glands on their scalp.
December 2025 in “Reports of Morphology” Men with alopecia areata have different body fat distribution compared to healthy men.
11 citations
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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.
April 2022 in “Journal of Investigative Dermatology” Androgenetic alopecia causes hair thinning due to increased androgen activity, treatable with minoxidil and finasteride.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)”
January 2017 in “Medeniyet medical journal” Early onset baldness may be linked to thicker artery walls.
September 2025 in “The American Journal of Medical Sciences and Pharmaceutical Research” Thinning and micro-graduation techniques can effectively and reversibly correct women's hairlines.
29 citations
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September 2014 in “American Journal of Dermatopathology” Horizontal sections of scalp biopsies are good for diagnosing Central Centrifugal Cicatricial Alopecia and help customize treatment.
15 citations
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May 1989 in “PubMed” Psoriasis on the scalp causes smaller oil glands and thinner hair but doesn't lead to hair loss.
2 citations
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November 2017 in “Cardiovascular endocrinology” Early balding, premature graying, and hair thinning can predict heart disease in young Asian males.
May 2014 in “Journal of The American Academy of Dermatology” Living near more dermatologists and using certain cancer screening tests lowers the chance of being diagnosed with advanced skin cancer.
May 2016 in “DOAJ (DOAJ: Directory of Open Access Journals)” Asian women often experience distinct hair thinning at the top of the head.
1 citations
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July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.
1 citations
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September 2021 in “Journal of Cosmetic Dermatology” B-mode ultrasonography and shear-wave elastography can help predict androgenetic alopecia early.
35 citations
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November 2019 in “Journal of the American Academy of Dermatology” A new variant of lichen planopilaris causing diffuse hair thinning was identified.
61 citations
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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.
July 2025 in “Journal of Investigative Dermatology” Androgens reduce THY1 in skin cells, leading to less fat, more fibrosis, and worse healing in males.
19 citations
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May 2004 in “The American Journal of Dermatopathology” The research found that a specific gene mutation causes fewer hair follicles and disrupted hair growth cycles, leading to thin and short hair in people with Hypotrichosis with Juvenile Macular Dystrophy.
January 2023 in “Springer eBooks” Most older adults experience pattern hair loss due to shrinking hair follicles, with men and women showing different balding patterns.