Copyright © 2018 by Türkiye Klinikleri.Objective: Data on prevalence, age and sex distribution of childhood skin diseases are limited. In this study, we aimed to evaluate the frequency of skin diseases in pediatric patients admitted to our outpatient clinic between 2014-2017. Material and Methods: We retrospectively analyzed patients aged 0-16 years, who applied to Dermatology and Venerology department of Cerrahpaşa Medical Faculty, İstanbul University between 1 January 2014-31 December 2017. Results: In this study, a total of 5.489 children who applied between the years 2014-2017 were analyzed. 56.6% of the patients were female, 43.4% were male. The ratio of girls/boys was 1.3/1. The age of the patients ranged from 13 days to 16 years. The mean age was 9.71±5.21. Patients most frequently applied during summer (29.1%). The most frequently admitted patients were adolescents (44.3%). A total of 195 dermatoses were recorded and classified under 28 general disease groups. The most frequently recorded disease group was eczema (24.4%). The most commonly diagnosed disease was acne vulgaris (13.7%). According to age groups, atopic dermatitis was the most frequent in infancy, pre-school and school period and acne vulgaris was the most common in adolescent period. Conclusion: Comparing our results with the literature gives us that age, sex, seasonal distribution and common diseases were similar to the literature. Unlike the literature, the number of diagnoses recorded and the number of patients applying for hair diseases were high.