September 2019 in “Journal of Investigative Dermatology” People with pattern hair loss have higher polyamine levels in the top of their head compared to the back.
December 2010 in “Dermatologic Surgery” Finasteride's effectiveness on the frontal hair loss area is not well-studied or confirmed.
17 citations
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October 2003 in “Brazilian Journal of Medical and Biological Research” The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
November 2022 in “Journal of Investigative Dermatology” Occipital hair follicles in male pattern baldness respond uniquely to testosterone, not androgen-insensitive.
May 2016 in “DOAJ (DOAJ: Directory of Open Access Journals)” Asian women often experience distinct hair thinning at the top of the head.
Vertex accentuation is a common pattern in female hair loss.
Early baldness and little chest hair may indicate higher prostate cancer risk.
9 citations
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April 2025 in “Psychoneuroendocrinology”
125 citations
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May 2007 in “Journal of The American Academy of Dermatology” The BASP classification is a detailed and accurate way to categorize hair loss in both men and women.
22 citations
,
July 2003 in “PubMed” Finasteride 1 mg significantly improves hair growth in men aged 41 to 60 with male pattern hair loss.
20 citations
,
May 1992 in “The Journal of Dermatologic Surgery and Oncology” Dr. Norwood's analysis highlights the need for careful patient selection and strategic hair transplant design to create a natural-looking hair density.
2 citations
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September 2017 in “Plastic and Aesthetic Research” Healthy Han Chinese have lower hair density than whites and Africans, and transplanting 300 hair units can nearly restore normal hair density.
1 citations
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March 2021 in “Frontiers in Medicine” Female pattern hair loss shows similar characteristics in both genders and should be classified by hair loss patterns, not gender.
April 2023 in “Our Dermatology Online” Trichoscopy is effective in diagnosing trichotillomania by showing specific hair patterns.
September 2021 in “Medical lasers” Laser treatment followed by a special hair growth solution increased hair count and thickness without side effects.
July 2007 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The BASP classification is a detailed system for categorizing hair loss in both men and women, but it may be complex for beginners and not fully suitable for grading female hair loss.
January 2020 in “Journal of Clinical Dermatology” Dutasteride helps increase hair density in patients with female-pattern hair loss by activating a new growth mechanism.
November 2014 in “British Journal of Dermatology” Hair loss is due to thinner hairs, not less hairs; hair diameter indicates balding progression and treatment effectiveness.
19 citations
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July 2004 in “Australasian Journal of Dermatology” Her hair grew back normally after she stopped rubbing it.
October 2024 in “Journal of Cutaneous and Aesthetic Surgery” Including the parietal eminence in hair transplants improves scalp appearance and balance.
75 citations
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August 2003 in “International journal of cosmetic surgery and aesthetic dermatology” The HairMax LaserComb made hair grow more and get stronger for people with hair loss.
39 citations
,
October 1967 in “British Journal of Dermatology” Hair loss in women often doesn't follow a pattern, isn't linked to age, may be genetic, and can be related to thyroid issues or other health factors.
33 citations
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August 1985 in “Archives of Dermatology” Acquired Progressive Kinking of Hair is likely an early sign of male pattern baldness.
24 citations
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March 2011 in “British Journal of Dermatology” Men with hair loss have more DNA changes in back-of-head hair follicles, possibly protecting them from thinning.
22 citations
,
January 1987 in “Dermatology” Hair loss is common, influenced by genetics and androgens, and can affect mental health.
9 citations
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July 2020 in “JAMA dermatology” Dermatoscopy can help diagnose CCCA without visible hair loss, offering a less invasive option than biopsy.
7 citations
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October 2018 in “Journal of Craniofacial Surgery” About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.
5 citations
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January 2004 in “Annals of Dermatology” People with androgenetic alopecia (AGA) have lower hair density and more single-hair units compared to those with normal scalps.