October 2025 in “Medical Journal of Babylon” Higher testosterone and lower Vitamin D levels are linked to hair loss in female COVID-19 patients.
The treatment showed promising hair regrowth in advanced-stage hair loss.
Hair and nails can show hormone changes during puberty in dogs.
December 2018 in “Journal of Advances in VetBio Science and Techniques” Low testosterone might be a common cause of hair loss in male dogs.
June 2011 in “The Journal for Nurse Practitioners” Up to half of adult women may experience hair loss, and doctors should use medical history, exams, and tests to find the cause and treat it.
June 2021 in “Archives of Advances in Biosciences” Finasteride reduces sperm count and quality and alters hormone levels in mice.
June 2025 in “Journal of the Faculty of Medicine Baghdad” Clove oil may help hair growth like minoxidil, but more human tests are needed.
November 2025 in “Wiley Interdisciplinary Reviews Forensic Science” Hair testing is a useful method for detecting past substance use and recent advancements improve its accuracy and reliability.
128 citations
,
January 1996 in “Journal of analytical toxicology.” Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
46 citations
,
May 1986 in “Seminars in Reproductive Medicine” Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.
10 citations
,
October 2010 in “International Journal of Andrology” Finasteride doesn't affect oral testosterone undecanoate, and high DHT levels may cause acne, prostate issues, and hair loss.
July 2007 in “Clinical Risk” A woman got severe scalp burns from a salon's improper hair bleaching treatment.
58 citations
,
September 2012 in “Dermatologic Clinics” Male pattern hair loss caused by follicular miniaturization; early diagnosis and treatment can reduce psychological burden.
16 citations
,
June 2008 in “Springer eBooks” Over 50% of women over 50 experience hair loss, with minoxidil being the only proven effective treatment.
15 citations
,
January 2017 in “JAMA Dermatology” Topical minoxidil improves female pattern hair loss, finasteride not effective, laser devices show mixed results.
11 citations
,
February 2008 in “British journal of nursing” Idiopathic hirsutism causes excessive hair growth in women, can be treated with medication and hair removal, but cannot be fully reversed.
5 citations
,
January 2020 in “Skin Research and Technology” Minoxidil 5% works better than 2% for hair growth in male-patterned hair loss.
2 citations
,
December 2015 in “International Journal of Dermatology” Washing test helps identify hair loss type, low iron levels significant.
1 citations
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July 1997 in “Inpharma Weekly” Finasteride improves hair growth and satisfaction in men with male pattern baldness but may cause sexual side effects.
June 2023 in “Annals of the College of Medecine” Low iron levels are linked to more hair loss in women with chronic hair shedding.
209 citations
,
September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
162 citations
,
April 2016 in “The Lancet Diabetes & Endocrinology” Testosterone therapy in transgender men has both desired effects like increased muscle mass and potential health risks such as higher cardiovascular risk.
59 citations
,
August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
12 citations
,
July 2014 in “International Journal of STD & AIDS” HIV patients with lower CD4 T cell counts often have more skin problems.
5 citations
,
September 2020 in “Journal of The American Academy of Dermatology” Men can experience female pattern hair loss, needing different treatments.
3 citations
,
March 2018 in “BMC Cancer” Baldness, especially at the front, may lower the risk of testicular cancer by 31%, but its link to prostate cancer is unclear.
June 2024 in “Frontiers in pharmacology” 2-deoxy-D-ribose gel may help regrow hair in cases of hair loss.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
33 citations
,
August 2018 in “Facial Plastic Surgery Clinics of North America” The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.
32 citations
,
January 2018 in “American Journal of Clinical Dermatology” Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.