Trichoscopy Features of Indonesian Males with Androgenetic Alopecia in Association with Disease Severity.

Abstract

Androgenetic alopecia (AGA) is a progressive loss of terminal hairs in a specific pattern distribution related to androgen. The dermoscopy of hair and scalp, known as trichoscopy, is a noninvasive method for diagnosing alopecia and other hair and scalp disorders. This study aims to report the correlation between the severity of males with AGA based on Hamilton-Norwood's scale with the clinical characteristics found in trichoscopy. This study included 40 patients aged 25-58 years who visited the dermatology outpatient clinic in a tertiary health facility in Indonesia. Clinical diagnosis was determined through history taking, physical examination, and trichoscopy. Based on Hamilton-Norwood's criteria, patients were divided into two groups: early and late stage. Parameters examined in trichoscopy include yellow dots, white dots, peripilar sign, vellus hair, hair diameter diversity, single-hair follicles, and empty follicles. The Chi-square test and Fisher's exact test were used to analyze the statistical significance between the groups. All participants presented with hair diameter diversity, vellus hair, and empty follicles (100%). None of the study participants had yellow dots. White dots and single-hair follicles were seen in 32 (80%) and 30 cases (75%), respectively. In the late-stage group, these features were more prevalent. Peripilar sign was found in 25 participants (62.50%), and it was more common in the early-stage group. No significant association was found between disease severity and trichoscopy features. The most common trichoscopy findings in particular order were hair diameter diversity, vellus hair, and empty follicles, followed by white dots, single-hair follicles, and peripilar signs. No significant association between alopecia severity and trichoscopy parameters was observed. Studies with a larger number of participants, including a control group, should be conducted to yield more significant results.