234 citations,
February 2001 in “British Journal of Dermatology” FPHL affects hair density and diameter, causing visible hair loss in older women.
63 citations,
October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
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.
41 citations,
May 2001 in “PubMed” Different thicknesses of hair strands can indicate the severity of hair thinning.
31 citations,
February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
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.
21 citations,
July 2014 in “British Journal of Dermatology” Hair thickness matters more than density for baldness in Japanese men over 25.
10 citations,
July 2017 in “Archives of Plastic Surgery” Hair thickness decreases from the upper to lower areas of the back of the head, affecting hair transplant results.
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.
9 citations,
January 2011 in “Skin Research and Technology” The new automatic tool accurately measures hair thickness and is reliable.
6 citations,
May 2021 in “Aesthetic Surgery Journal” Higher cell number PRP improves hair density and diameter more than lower cell number PRP.
6 citations,
April 2006 in “Lupus” People with lupus and rheumatoid arthritis have thinner hair than healthy people.
5 citations,
June 2016 in “Twin research and human genetics” Hair diameter and curvature are mostly determined by genetics.
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.
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.
3 citations,
April 2021 in “Journal of Cosmetic Dermatology” The micrometer caliper is a reliable tool for measuring hair diameter for FUE surgery.
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.
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.
2 citations,
August 2019 in “International Journal of Cosmetic Science” Older age and certain lifestyles are linked to thinner, weaker hair, while how you see your hair relates to its thickness.
1 citations,
December 2022 in “Clinical, cosmetic and investigational dermatology” Arab hair is generally thicker but less dense compared to other ethnicities, affecting hair disorder diagnosis and treatment.
1 citations,
April 2013 in “Journal of dermatological treatment” Wearing a cast for four weeks makes hair grow longer, thicker, and denser.
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.
1 citations,
April 2021 in “Clinical, Cosmetic and Investigational Dermatology” Conflicting findings in androgenic alopecia are likely due to biopsy location, hair diameter diversity, and hair follicle miniaturization.
February 2024 in “JAAD International” Measuring the variety in hair thickness can help diagnose male pattern baldness in Korean men.
January 2023 in “Al-Azhar International Medical Journal /Al-Azhar International Medical Journal” Trichoscopy is a quick, non-invasive way to measure hair density and thickness, helping diagnose hair loss.
February 2014 in “Journal of medical sciences” Treating androgenic alopecia can significantly increase hair thickness, especially in males, with hair color and scalp location also affecting hair diameter.
November 2023 in “Journal of Dermatological Science” A new computer tool quickly measures hair thickness differences in people with common types of hair loss.
August 2023 in “The Indonesian Biomedical Journal” Rosemary essential oil improved hair growth and thickness in UVB-exposed mice.
June 2021 in “Aesthetic Surgery Journal” PRP improves hair growth in AGA, but higher concentrations aren't significantly better than lower ones.
May 2002 in “British Journal of Dermatology” Hair loss caused by longer latent hair cycle and sudden miniaturization, not gradual follicle size reduction.