25 citations
,
February 2022 in “JAAD International” Some COVID-19 patients lose hair, with the most common type linked to male hormones and possibly increasing the risk of severe illness.
24 citations
,
June 2019 in “Journal of Cosmetic Dermatology” Scalp microneedling may improve hair density and thickness for various alopecia types.
23 citations
,
July 1982 in “International Journal of Dermatology” The review concludes that accurate diagnosis of different types of hair loss requires proper biopsy techniques and understanding the hair growth cycle and underlying causes.
19 citations
,
February 2013 in “The American Journal of Dermatopathology” Nonscarring alopecia has higher hair density than scarring alopecia, and hair density can help diagnose the type of alopecia.
18 citations
,
January 2016 in “Skin appendage disorders” The paper suggests improving diagnosis and treatment of telogen effluvium but does not recommend a new classification system.
13 citations
,
January 2014 in “Dermatology” Radiation-induced alopecia after angioembolization usually heals on its own and can look like other hair loss types, but patient history helps prevent misdiagnosis.
5 citations
,
October 2013 in “Veterinary Clinics of North America: Equine Practice” Some horses lose hair without inflammation or itching due to various conditions, and while mainly a cosmetic issue, diagnosis requires examination and biopsies, and breeding is not advised if it's hereditary.
4 citations
,
October 2018 Hair loss in children is often caused by scalp infections, immune disorders, hair pulling, stress, and requires careful treatment due to emotional effects.
4 citations
,
July 2012 in “Dermatologic Clinics” New biopsy techniques and tools improve alopecia diagnosis, and both too much and too little selenium can cause hair loss.
3 citations
,
January 2022 in “Cutis” Telemedicine is effective for diagnosing hair loss, especially in people with darker skin, during the pandemic.
3 citations
,
April 2019 in “Journal of Dermatological Treatment” Caffeine shows promise for treating some types of hair loss, but more research is needed.
2 citations
,
January 2022 in “Clinical, Cosmetic and Investigational Dermatology” The refined wash test is a reliable way to measure daily hair loss and can tell the difference between different types of hair loss.
2 citations
,
January 2018 in “DOAJ (DOAJ: Directory of Open Access Journals)” The most effective way to diagnose non-scarring hair loss is by transverse sectioning, and some cases, particularly in males with inflammation around hair follicles, might be curable.
1 citations
,
July 2021 in “Anais Brasileiros de Dermatologia” The conclusion is that three signs can help diagnose hair loss after it happens, potentially avoiding more invasive tests.
1 citations
,
January 2017 in “International Journal of Dermoscopy” Dermoscopy is useful for identifying and tracking different types of hair loss without scarring.
1 citations
,
October 2013 in “Expert Review of Dermatology” Diagnosing alopecia areata is challenging and requires careful examination and various tests to distinguish it from other hair loss types.
1 citations
,
January 2006 in “Elsevier eBooks” The conclusion is that different types of hair loss in dogs and cats can be cosmetic or serious, and affected animals should not be bred.
January 2026 in “Archives of Current Medical Research” Telogen effluvium is the most common hair loss in women, often linked to low iron, while tight hairstyles and headscarves increase traction alopecia risk.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Hair follicles are thinner in alopecia patients, especially in alopecia areata.
October 2025 in “Clinical and Experimental Dermatology” Low-dose oral minoxidil significantly improves hair density in non-scarring alopecia.
GLP-1 receptor agonists for weight loss may cause hair loss, especially in women.
August 2025 in “International Journal of Molecular Sciences” Broccoli sprout extract may help regrow hair by improving hormone metabolism.
July 2025 in “Journal of Investigative Dermatology” Wearing a hijab doesn't cause hair loss, but how it's worn can lead to hair issues, and many affected women don't seek medical help.
November 2024 in “Health Science Reports” Light/laser therapy can effectively increase hair density in some types of alopecia, especially androgenic alopecia and alopecia areata.
August 2024 in “Nutrients” Probiotics help reduce hair loss and increase hair growth in people with androgenic alopecia.
June 2024 in “Дерматовенерология Косметология” Autologous follicular stem cells improved hair loss in 57% of patients.
February 2024 in “Biomedicines” Hormones like androgens, estrogen, thyroid hormones, and stress hormones can contribute to hair loss, and treatments target these hormonal imbalances.
July 2023 in “Journal of Clinical Medicine” The document concludes that understanding hair follicle histology and the hair cycle is crucial for diagnosing alopecia.
June 2022 in “Plastic and Reconstructive Surgery – Global Open” Stem cell serum effectively treated hair loss caused by COVID-19.
The paper concludes that the patchiness of alopecia areata is likely due to when the immune attack happens in the hair growth cycle.