BACKGROUND Trichoscopy is a tool used in the diagnosis of alopecia, but its utility has not been completely assessed. The objective is to study the dermoscopy findings of different types of non-scarring alopecia of the scalp. MATERIALS AND METHODS A cross-sectional study was performed in patients with non-scarring alopecia. After clinical assessment and relevant investigations, trichoscopy was performed using a non-polarised trichoscope (×10). The utility of trichoscopy in difficult cases of

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... pecia was assessed statistically. RESULTS In our study, out of 200 cases, 92 cases (46%) were of androgenetic alopecia, 70 cases (35%) were alopecia areata, 36 cases (18%) were telogen effluvium and 2 cases had both androgenetic alopecia and alopecia areata. Hair diameter diversity was observed in all cases of androgenetic alopecia with peripilar sign being the most frequent findings. In alopecia areata, the most common findings were black dots (51.4%) followed by broken hair (31.4%) and yellow dots (30.0%). In telogen effluvium, one follicular hair unit and empty hair follicles were seen in all cases. CONCLUSION Trichoscopy is useful in the differential diagnosis of alopecia. Among the various trichoscopic findings, those of diagnostic value were identified.