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This case study reports the first instance of irreversible alopecia universalis occurring during pegylated interferon-ribavirin therapy in a man with hepatitis C infection, without evidence of immunological or thyroid disorders.

This study found that irreversible and severe alopecia can occur following docetaxel or paclitaxel chemotherapy in breast cancer patients.

This case study highlights congenital atrichia with papular lesions as a cause of total body hair loss, characterized by the absence of hair follicles and the presence of skin-colored papules.

This case report presents two instances where typically irreversible lichen planopilaris and frontal fibrosing alopecia showed signs of hair regrowth and symptom improvement following specific treatments.

The study found that CK15 expression, representing hair follicle stem cell activity, was reduced or absent in scarred primary cicatricial alopecia lesions, suggesting stem cell damage may contribute to the scarring process.

This review discusses histopathologic findings in diagnosing primary cicatricial alopecias and emphasizes the importance of correlating histology with clinical presentation for accurate diagnosis; it reports no new results.

This review discusses primary cicatricial alopecias, detailing their classification, pathogenesis, clinical features, histopathologic findings, and treatment, without reporting new experimental results.

Doctors use their experience to choose treatments for scarring hair loss because it's hard to diagnose and treat.

This review discusses androgenetic alopecia and reports no clinical findings; the authors highlight a need for further research.

This review outlines current treatments for folliculitis decalvans and dissecting cellulitis of the scalp, noting conventional therapies' limitations and promising but limited results from targeted biologic agents.

A new genetic mutation in mice causes permanent hair loss and skin wrinkling.

This study found that CI-1033 caused skin lesions in rats that resemble effects seen in humans receiving EGF receptor inhibitors, suggesting this animal model can help explore the mechanisms behind this cutaneous toxicity.

This study found a recurrent nonsense mutation in the HR gene linked to atrichia with papular lesions in two Kashmiri families, suggesting whole exome sequencing as an efficient method for diagnosis and genetic counseling.

This case report presents an 8-year-old girl with congenital atrichia, marked by complete hair loss and papular lesions, linked to mutations in the human hairless gene.

The document explains hair growth, hair loss types, and other hair-related terms.

The document explains different hair and scalp conditions, including common hair loss after pregnancy or illness, drug-induced hair loss, hereditary excessive hair growth, patterned baldness, autoimmune hair loss, and permanent loss due to skin disease, with generally limited treatment options.

In this study, researchers identified a form of irreversible scalp alopecia in Black women using hot combs, characterized by incomplete hair loss primarily on the crown and follicular scarring.

Androgenetic alopecia may be irreversible due to the detachment of a muscle from hair follicles.

This case report describes irreversible alopecia universalis following discontinuation of Peg-IFN/RBV treatment for chronic hepatitis C, highlighting potential autoimmune side effects of interferon-based therapies.

This consensus from 22 Spanish dermatologists recommends using a multimodal therapy starting with oral dutasteride, combined with topical and/or intralesional agents, and adding hydroxychloroquine if inflammation persists, to manage frontal fibrosing alopecia due to its irreversible hair loss and lack of specific approved treatments.

In this study, irreversible alopecia on the crown of the scalp in Black women using hot combs was associated with chronic inflammation and follicle damage leading to scarring.

This article reviews the general, pathophysiological, diagnostic, and therapeutic aspects of alopecia frontal fibrosante, highlighting its irreversible nature and the importance of early diagnosis, but it reports no new clinical results.

This study found that the use of hot combs with petrolatum in Black women causes irreversible alopecia limited to the crown of the scalp, resulting in follicular scarring.

This review discusses the wide range of drugs potentially causing reversible or irreversible hair loss and emphasizes the difficulty of diagnosing drug-induced alopecia without withdrawal of the suspected medication; it reports no new clinical findings.

This case report highlights traction alopecia in two adolescent Sikh brothers who developed scarring alopecia from wearing a turban, emphasizing the importance of early changes in hair care to prevent irreversible hair loss.

This study observed that in Mexico, Frontal Fibrosing Alopecia predominantly affects postmenopausal women, with an increased incidence in recent years, and highlights the challenge of early diagnosis to prevent irreversible hair loss.

This study found that loss of contact between the arrector pili muscle and the hair follicle bulge may explain why hair loss in male and female pattern baldness is largely irreversible, unlike in alopecia areata.

This study highlights the significant risk of vascular embolism associated with hyaluronic acid filler injections, emphasizing concerns about potential irreversible damage when fillers are injected in "unexplored" facial areas due to complex and variable facial anatomy.

This narrative review discusses the ongoing concerns about the adverse effects of finasteride in treating androgenetic alopecia, which some reports indicate may be irreversible even after stopping the drug, but it does not report new clinical results.

This study found that TNFα inhibitors can induce psoriatic alopecia, highlighting that early diagnosis and discontinuation of the drugs in some cases may prevent irreversible scalp damage.