March 2023 in “Human Pathology” This review found that while follicular hair counts and ratios assist in diagnosing non-scarring alopecia, they should be used alongside specific morphological features for accurate diagnosis.
July 2025 in “Journal of Dermatological Treatment” This study found that platelet-rich plasma significantly improved hair growth parameters in androgenic alopecia patients and was even more effective when combined with minoxidil, particularly in reducing vellus hair.
June 2023 in “Annals of the College of Medecine” This study found that childbearing women with telogen effluvium had significantly lower ferritin levels compared to healthy controls, and observed a strong inverse correlation between ferritin levels and the amount of hair shed, suggesting low iron stores may contribute to hair loss.
24 citations
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September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
November 2025 in “American Journal of Tropical Medicine and Hygiene” In this study, researchers observed that approximately 1.15% of dengue fever patients experienced alopecia, predominantly among females. The hair loss usually occurred during the recovery phase and was often identified as telogen effluvium, with lower platelet count and hematocrit levels potentially serving as risk factors.
December 2023 in “PubMed” This study found that both single- and double-spin PRP preparation methods significantly increased thrombocyte counts and improved hair parameters in males with androgenetic alopecia, with the single-spin method showing a more significant increase in thrombocyte count.
August 2019 in “Journal of The American Academy of Dermatology” RV3466F lotion significantly reduces hair loss and improves acute telogen effluvium.
1 citations
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January 2003 in “Annals of Dermatology” This study found that hair follicles on the anterior scalp may be more vulnerable to acute telogen effluvium than those on the occipital scalp.
31 citations
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May 2020 in “Dermatologic Therapy” Quarantine stress likely worsened hair loss in women, but video consultations helped manage their condition and reduce anxiety.
July 2025 in “The Journal of Dermatology” This study reported that 5% topical minoxidil lotion may be beneficial for enhancing hair regrowth in patients with telogen effluvium, although its effectiveness is limited by the self-healing nature of the condition and the small sample size.
10 citations
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August 2021 in “Journal of Cosmetic Dermatology” This study retrospectively analyzed 3028 patients with telogen effluvium, finding that 6.2% had iron deficiency anemia and vitamin D deficiency was common, especially in women who were more often prescribed vitamin D therapy.
June 2024 in “Archives of dermatological research” Targeted testing for telogen effluvium patients can save healthcare costs.
April 2024 in “Benha Medical Journal” In this study, patients with telogen effluvium had significantly lower levels of haemoglobin, hematocrit, and serum ferritin compared to healthy controls.
July 2023 in “Dermatology practical & conceptual” In this study, hemoglobin levels were the only marker positively correlated with anagen hair ratios in patients with telogen effluvium, suggesting it may be a cost-effective initial test for management.
11 citations
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September 2021 in “Skin Appendage Disorders” This study observed variability in hair density and types across different scalp areas in cadaver biopsies, providing reference values that could aid in diagnosing hair disorders in Asians.
1 citations
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February 2023 in “Siriraj Medical Journal/San Sirirat” This study found that Thai males with androgenic alopecia displayed lower average hair density in the occipital scalp compared to other Asian populations, but higher than those with advanced AGA.
September 2024 in “Journal of Bioscience and Applied Research/Journal of Bioscience and Applied Research ” This study explored biochemical biomarkers in post-COVID-19 patients experiencing acute telogen effluvium, finding sex differences in blood characteristics and varying D-dimer levels by age, with elevated D-dimer showing correlations with inflammation markers.
This study reported no significant difference in serum ferritin levels between female patients with telogen effluvium and those without hair loss.
2 citations
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January 2018 in “DOAJ (DOAJ: Directory of Open Access Journals)” In this study on Iranian patients with non-scarring alopecia, researchers found that androgenetic alopecia was the most common subtype, with perifollicular inflammation observed more in males. They reported that transverse sectioning is generally sufficient for diagnosis, but combining with vertical sectioning provides more comprehensive information.
April 2026 in “Science Progress” This study found that among users of glucagon-like peptide-1 receptor agonists, semaglutide and tirzepatide were associated with higher incidences of hair loss, particularly androgenetic alopecia and telogen effluvium, with rapid weight loss identified as a potential contributor to telogen effluvium.
34 citations
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June 1990 in “British Journal of Dermatology” This study found that etretinate treatment led to an increase in plucked telogen hair counts, suggesting a reduction in the duration of anagen as the primary cause.
23 citations
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June 1976 in “PubMed” This study observed that crash dieting led to significant hair loss in patients, with hair regrowth occurring several months after the diet.
21 citations
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May 1996 in “Current problems in dermatology” This article reviews various causes and investigative techniques for different forms of alopecia and reports no new findings.
12 citations
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October 1976 in “The BMJ” This abstract reports an influenzalike illness with varying antibody titers observed in a woman and her husband, but it does not provide broader clinical findings.
6 citations
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August 2006 in “Journal of Cutaneous Pathology” This case report describes two brothers with an unusual, possibly treatment-resistant inflammatory variant of androgenic alopecia, featuring follicular isthmic lymphocytic inflammation and diffuse central scalp hair loss.
4 citations
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June 1976 in “JAMA” This study reported that patients experienced significant hair loss, attributed to telogen effluvium, after rapid weight loss from a vigorous diet, but hair regrowth occurred within several months.
139 citations
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July 1991 in “Journal of The American Academy of Dermatology” This article discusses the structure of hair follicles and their significance in evaluating hair disorders, but it does not report any new research findings.
51 citations
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January 2004 in “Skin Pharmacology and Physiology” This review discusses various techniques for evaluating hair shedding and alopecia but reports no new clinical results. The authors emphasize the value of specific clinical and instrumental methods in assessing hair growth.
30 citations
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July 2017 in “Stem cells and cloning” This study found that scalp injection of fat enriched with stem cells may offer a promising alternative for treating early genetic alopecia in both men and women.
16 citations
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February 2018 in “Journal of The American Academy of Dermatology” This study found that scalp involvement in dermatomyositis consistently shows a nonscarring pattern with chronic telogen effluvium, featuring telangiectasia and mucin deposition as universal histologic markers.