115 citations
,
September 2005 in “International Journal of Dermatology” Different ethnic groups have unique hair growth patterns, with African hair growing slower and less dense, Asian hair growing fast but sparse, and Caucasian hair being densest; men are more likely to experience hair loss than women.
23 citations
,
January 2014 in “International Journal of Biological Sciences” African American men with prostate cancer have more androgen receptor mutations, which may lead to more aggressive cancer compared to Caucasian American men.
2 citations
,
October 2017 in “Global Media and Communication” The conclusion is that top men's magazines in India promote Western ideals of masculinity, favoring fair-skinned, youthful, and Western Caucasian men.
November 2009 in “Medical & surgical dermatology” The document concludes that Borrelia afzelii causes a skin condition in France, a gene is linked to hair loss in Caucasian women, and various genetic mutations affect skin diseases.
June 2004 in “Journal of Investigative Dermatology” Apoptosis may play a role in feather and hair development, SF-36 is better for mental health in skin patients, a psoriasis gene is found in Caucasians, eosinophils might not be crucial for some skin allergies, and changes in atopic dermatitis could increase skin sensitivity.
September 2002 in “대한피부과학회지” Koreans have lower hair density, larger hair diameter, and slower hair growth than Caucasians.
3 citations
,
October 2015 in “International Journal of Dermatology” Normal hair density and diameter ratios were established to help diagnose adult hair loss.
27 citations
,
January 2002 in “Exogenous Dermatology” Chronic exposure to sunlight may worsen male pattern baldness and protecting the scalp from the sun could slow it down.
13 citations
,
January 2012 in “Case reports in dermatological medicine” An 84-year-old man got a rare scalp condition from using imiquimod cream, which was cured with systemic steroids.
9 citations
,
October 2015 in “Postgraduate Medical Journal” Scurvy can cause skin issues and is treatable with vitamin C.
8 citations
,
May 2005 in “The American journal of dermatopathology/American journal of dermatopathology” The hair defect is due to abnormal inner root sheath keratinization.
5 citations
,
November 2012 in “Journal of the American Academy of Dermatology” A 3-year-old girl has short anagen syndrome, causing her hair to stay short.
4 citations
,
September 2011 in “Journal of the American Academy of Dermatology” A man developed a skin cancer called folliculotropic mycosis fungoides after a kidney transplant.
4 citations
,
September 2010 in “Journal of Medical Case Reports” A man developed autoimmune issues after a transplant, improved with treatment, but died from leukemia relapse.
1 citations
,
August 2022 in “Rheumatology (Bulgaria)” A woman experienced severe symptoms, including hair loss, after a COVID-19 vaccine, suggesting a possible autoimmune reaction.
January 2025 in “Dermatology Research and Practice” Higher activity in lichen planopilaris is linked to certain immune and tissue genes.
May 2024 in “Journal of trace elements in medicine and biology” Overweight or obese women before pregnancy have lower iron levels in their serum and hair during early pregnancy.
November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
A teenager had both alopecia areata and vitiligo, which are rare to occur together.
A TNFAIP3 gene mutation can cause unusual and varied symptoms of lupus and Sjogren's syndrome.
A 2-year-old boy with a rare type of lupus causing hair loss improved with oral steroids.
September 2011 in “American Journal of Transplantation” Hair regrowth in alopecia universalis may be possible by altering immune cells.
83 citations
,
April 1992 in “Clinical Endocrinology” Having enough iron improves the effectiveness of a specific hair loss treatment in women.
68 citations
,
May 2012 in “Annals of Oncology” Some breast cancer chemotherapy can cause permanent hair loss.
63 citations
,
October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
35 citations
,
January 2006 in “Dermatology Online Journal” Lipedematous scalp may be underdiagnosed and doesn't improve with finasteride.
18 citations
,
July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
9 citations
,
May 2014 in “BMC medical genetics” A woman with a unique syndrome similar to TRPS has a genetic change near the TRPS1 gene, affecting its regulation.
6 citations
,
November 1997 in “International Journal of Dermatology” Women with acne and irregular periods had higher active testosterone levels, which could suggest the usefulness of antiandrogen treatment.
2 citations
,
May 2022 in “Diagnostics” Vitamin D levels in hair don't match those in blood, so hair isn't a reliable indicator of Vitamin D status.