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Hair loss can be caused by hormones, illness, autoimmune disorders, or vitamin deficiencies, and treatments vary depending on the type.

This review describes the clinical, trichoscopic, and histopathological features of hair disorders linked to autoimmune diseases and reports no new clinical results.

This case report describes a 54-year-old female erroneously treated for androgenetic alopecia with no improvement, later diagnosed with alopecia areata incognito through histopathological evaluation and appropriately treated.

This paper reviews female androgenetic alopecia and highlights the importance of differentiating it from other hair loss conditions, noting its potential association with hyperandrogenism in premenopausal women, but reports no new results.

This review discusses common skin appendage diseases, including their pathophysiology and treatments, but does not report new results.

This review outlines various causes and manifestations of hair loss, highlighting that each type has distinct underlying mechanisms and requires specific treatment approaches, without reporting new clinical results.

This study introduced a noninvasive spectroscopy method to assess hair follicle stages in mice by measuring skin diffuse reflectance and melanin dynamics, offering a potential tool for hair regeneration research.

This review discusses the clinical and trichoscopic features of lichen planopilaris and notes its potential underdiagnosis prior to hair transplant, but it reports no new findings.

This study describes a follicular automaton model that simulates human hair cycles and may replicate hair pattern evolution seen in diffuse or androgenetic alopecia.

This case report describes alopecia areata dermoscopy in an African-American patient, revealing novel patterns such as a diffuse honeycomb-like pigmented network and white dots, suggesting skin color may affect dermoscopic findings.

This study found that basal cell carcinoma exhibits altered expression patterns of CD10, p63, BCL-2, and EMA proteins compared to normal skin, with notable differences in staining and reactivity.

This study observed that class IV diffuse proliferative glomerulonephritis was the most common form of lupus nephritis among the children studied, with remission achieved in a significant portion after treatment.

This article discusses the prevalence and patterns of androgenic alopecia in men and women, highlighting its progression and differences in hair loss distribution between the sexes, but reports no new data.

This study classified frontal fibrosing alopecia patients into three clinical patterns, finding that pattern III had the best prognosis and pattern II the worst after treatment with dutasteride and corticosteroids.

This study found that a keratin mutation may cause diffuse partial woolly hair associated with loose anagen hair syndrome in some families, but other genetic factors could play a role in different cases.

This article proposes a hypothesis for alopecia areata hair loss patterns and provides epidemiological evidence supporting distinct hair loss characteristics between general cases and those with androgenetic alopecia; it presents no new clinical results.

This retrospective study observed that telogen effluvium, a type of diffuse hair loss, frequently occurs in females aged 18–30 following SARS-CoV-2 infection, often accompanied by nutritional deficiencies, suggesting an association between COVID-19 and micronutrient deficiency, with acute cases being most common but chronic cases possible.

This review discusses chemotherapy-induced alopecia, highlighting its pathogenesis, clinical patterns, and current therapeutic approaches, with no new clinical results reported.

This case study highlights the importance of considering syphilis in the differential diagnosis for hair loss, as patients with the infection may present with non-typical alopecia patterns.

This report describes a Danish family with autosomal dominant hypotrichosis, where affected members experienced gradual diffuse hair loss leading to near-total scalp alopecia by ages 14-21.

In this study, pediatric patients with overt polyautoimmunity frequently had systemic lupus erythematosus as an index disease, with clustering patterns revealing familial influence on autoimmune disease aggregation.

In this study, researchers presented cases of cellular neurothekeoma in three male family members with early-onset in infancy, suggesting a potential genetic component and inheritance pattern, which deviates from the typical presentation seen mostly in women between 20–30 years.

Alopecia areata incognito in children can be effectively treated with triamcinolone acetonide and supplements, leading to full hair regrowth.

This review discusses the diagnostic features of androgenetic alopecia through trichoscopy and reports no clinical results; it emphasizes hair shaft variability and yellow dots as key indicators.

Syphilitic alopecia is a rare hair loss condition in secondary syphilis that looks similar to another condition but can be diagnosed with specific tests and responds to antibiotics.

This study reports that variable environmental factors, including dietary habits, may contribute to the increasing incidence and diverse clinical presentations of frontal fibrosing alopecia.

This study reported that high ornithine decarboxylase expression and decreased keratin K1 and K10 expression may serve as useful markers for early stages of tumor development in mouse skin.

This chapter reviews trichoscopic features of primary cicatricial alopecias, particularly lichen planopilaris and frontal fibrosing alopecia, and reports no new results.

In this review, researchers outline the characteristics of scalp rosacea, an underrecognized inflammatory dermatosis, describing its multifactorial pathogenesis, diagnostic features, and management strategies, noting its clinical similarities with facial rosacea and the absence of standardized diagnostic criteria or therapeutic guidelines.

This study presents a new model for the progression of androgenetic alopecia, suggesting that the loss of attachment between the bulge's stem cells and the arrector pili muscle may contribute to irreversible hair miniaturization.