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This review addresses the complexities in trichoscopy terminology and proposes an updated diagnostic flowchart for hair diseases, but it reports no new clinical findings.

In this study, trichoscopy significantly improved diagnostic accuracy in non-cicatricial alopecia, identifying alopecia areata as the most common cause and effectively aiding diagnosis in 28.2% of ambiguous cases.

In this study, the authors compared trichoscopy findings for different forms of diffuse non-cicatricial alopecia in females and suggested that trichoscopy might often replace the need for histopathological confirmation, reserving biopsies for more uncertain cases.

This study applied a new RGB trichrome stain to human skin samples, revealing distinct structural staining in normal tissues and potential proteoglycan-rich zones in hair follicles.

This study suggests that trichoscopy may assist in diagnosing pemphigus, particularly for scalp-specific lesions, by identifying certain characteristic features.

This review presents various trichoscopic findings for diagnosing alopecia areata but reports no new clinical results, emphasizing that no single marker is pathognomonic and multiple features should be considered together.

This study found that the TrichoScan method detected significant increases in hair counts and cumulative hair thickness in men after finasteride treatment, suggesting its potential for monitoring hair treatment responses.

In this study, the authors evaluated 200 Egyptian children with focal non-cicatricial alopecia, finding that alopecia areata (42%) and tinea capitis (40.5%) were the most prevalent causes. Trichoscopy identified unique features for each condition, enhancing diagnosis and management.

This study found that in patients with alopecia areata, trichoscopy was a valuable tool for monitoring disease activity, severity, and therapeutic response, showing changes in trichoscopic markers that preceded improvements observed in the hair pull test.

In this study, researchers investigated the alignment of trichoscopic findings with ayurvedic signs (lakshanas) for diagnosing hair loss, suggesting that integrating these perspectives could enhance diagnostics and management of hair and scalp conditions.

This review examines the trichoscopic characteristics of scalp DLE and LPP, correlating these findings with histopathological data, but provides no new clinical results.

Trichoscopy helps diagnose and manage different types of hair loss effectively.

This study developed an automated image analysis framework for diagnosing hair disorders using trichoscopic images, reporting a Random Forest classifier as having an 86.67% accuracy in distinguishing between different scalp pathologies based on quantitative image features.

In this study, researchers examined trichoscopic features in a cohort of Black patients with alopecia areata, identifying both common and novel characteristics, but found no statistical link between these features and the severity of alopecia.

This study examined trichoscopic findings in androgenetic alopecia, reporting that hair diameter variability, vellus hairs, and the peripilar sign are valuable indicators for diagnosing this condition.

This study reviewed trichoscopic images to assess hair loss, finding that ayurvedic signs (lakshanas) aligned with modern trichoscopic parameters, potentially aiding accurate diagnosis and management of hair conditions.

This review discusses the role of scalp imaging techniques in trichology for researching drug delivery and toxicology, without presenting new clinical results.

This review discusses the role of trichoscopy in diagnosing and managing various alopecia types, highlighting its ability to detect specific patterns in both scarring and non-scarring forms, thus aiding in treatment decisions and reducing biopsy necessity.

This study found that measuring hair thickness with a phototrichogram provided significantly thicker readings than using a micrometer caliper, suggesting that the phototrichogram may be more clinically useful for evaluating hair in patients undergoing hair transplantation.

This study reported that trichoscopy revealed distinctive patterns across different autoimmune bullous diseases, suggesting it can be a useful preliminary diagnostic tool for differentiating these conditions.

This study found that both trichoscopy and folliscopy are highly accurate for diagnosing telogen effluvium, but trichoscopy is easier and quicker to perform.

This article reviews the use of trichoscopy for differentiating mimickers of patterned hair loss and assessing donor sites in hair transplant patients, without providing new clinical findings.

Trichoscopy is effective in diagnosing trichotillomania by showing specific hair patterns.

In this study, researchers observed that trichoscopy could reliably identify features such as anisotrichosis and signs associated with inflammation and fibrosis in female pattern hair loss, which may aid in assessing disease severity and guiding treatment decisions.

This study used ultrahigh-resolution optical coherence tomography to observe hair shaft structures, finding melanin granules absent only in white hair, which may explain color differences between black and white hair.

In this case report, a 5-year-old boy presented with an itchy patch of hair loss in the frontotemporal region, with trichoscopy revealing specific hair shaft features, such as black dots and corkscrew hairs.

This study identified two distinct trichoscopic patterns in the mid-frontal scalp of patients with frontal fibrosing alopecia who also display clinical features of androgenetic alopecia.

This study found that trichoscopy criteria can distinguish female androgenic alopecia from chronic telogen effluvium, with specific features achieving 98% diagnostic specificity.

This study found that dermoscopy improves clinical diagnosis accuracy for trichostasis spinulosa and proposes a new dermoscopic classification with implications for treatment outcomes.

This mini-review summarizes the Trichoscan as a sensitive tool for measuring hair growth parameters, demonstrating its effectiveness in detecting treatment response in androgenetic alopecia but noting some practical limitations.