37 citations
,
October 2014 in “Maturitas” Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.
23 citations
,
July 2018 in “Journal of Cosmetic Dermatology” Chemotherapy caused hair loss with specific patterns, but most patients had hair regrowth after treatment, while some had lasting hair loss.
52 citations
,
May 2015 in “PLOS Genetics” miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.
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
,
January 2006 in “Elsevier eBooks” Cats lose fur due to various reasons, including allergies, infections, genetics, hormones, diet, cancer, stress, and some conditions are treatable while others are not.
February 2024 in “Journal of Cosmetic Dermatology” White hair patch repigmented and hair regrew in a balding patient after treatment with exosomes and laser.
4 citations
,
January 2023 in “Frontiers in Immunology” Shorter telomeres in white blood cells may increase the risk of a common type of hair loss.
February 2026 in “Frontiers in Medicine” FUE hair transplants are generally safe but require careful planning to avoid rare complications.
December 2023 in “Clinical, cosmetic and investigational dermatology” The study found that white hair in vitiligo has specific patterns and structures, which vary with the stage of the disease and may be similar to another hair condition.
3 citations
,
February 2025 in “Journal of the American Academy of Dermatology” Feminizing hormone therapy increases hair counts and improves hair-related quality of life, while masculinizing therapy may reduce large terminal hairs.
68 citations
,
May 2012 in “Annals of Oncology” Some breast cancer chemotherapy can cause permanent hair loss.
3 citations
,
June 2024 in “Skin Research and Technology” Higher LDL lipids may increase alopecia areata risk, while higher triglycerides may decrease it.
42 citations
,
August 2013 in “International Journal of Women's Health” Female pattern hair loss is caused by multiple factors and while treatments like topical minoxidil, hormone therapy, and low-level light therapy can help, none can fully cure it.
12 citations
,
June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.
6 citations
,
July 2018 in “JAMA facial plastic surgery” Injecting minced fat into the facial artery can cause severe eye problems and death, more so than other fat types, and larger amounts increase these risks.
February 2026 in “ImmunoTargets and Therapy” Tumor immunotherapy can cause hair loss by disrupting hair follicle immunity.
44 citations
,
March 2004 in “Journal of Investigative Dermatology” The effects of estrogen on human hair growth are unclear and need more research.
September 2025 in “BULLETIN OF STOMATOLOGY AND MAXILLOFACIAL SURGERY” Better supportive care is needed to manage chemotherapy side effects.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
28 citations
,
August 2005 in “Journal of Investigative Dermatology” TG5 helps maintain hair follicle health, while TG3 aids in hair shaft development.
1 citations
,
January 2021 in “Skin appendage disorders” Chemotherapy patients don't all lose their hair due to factors like hair growth rates, age, genetics, and the type of drugs used.
9 citations
,
June 2008 in “Springer eBooks” Understanding hair follicle structure is key for treating hair disorders and could help develop new treatments.
3 citations
,
October 2024 in “Animals” Crimped wool has proteins linked to crimp formation, while straight wool has proteins linked to fiber fineness, which can improve wool quality and value.
January 2025 in “SKIN The Journal of Cutaneous Medicine” Calcipotriol's effectiveness for treating alopecia areata is unclear and needs more research.
September 2024 in “World Journal of Advanced Research and Reviews” COVID-19 can harm many body parts, not just the lungs.
Frontal fibrosing alopecia can be managed with personalized combination therapies, but no cure exists yet.
June 2023 in “Journal for international medical graduates” Smoking increases the risk of hair loss, especially male pattern baldness.
147 citations
,
September 2006 in “Developmental Cell” Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.
17 citations
,
December 2010 in “Journal of Investigative Dermatology” Flightless I protein affects hair growth, with low levels delaying it and high levels increasing hair length in rodents.
13 citations
,
January 2014 in “Postępy Dermatologii i Alergologii” Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.