Objective: Asthma is a chronic infl ammatory disease caused by genetic and environmental factors. Skin tests show type 1 hypersensitivity reactions against various allergens. Allergic triggers and degree of sensitivity against a specifi c agent can be determined by skin tests. In this study; the skin test results in asthmatic children, the presence of allergic rhinitis based on family history, and evaluations depending on several factors have been considered.Material and Methods: Patients who had been diagnosed and monitored with asthma together with allergic rhinitis and had no any other disease were enrolled in to the study. A standard data form was completed for each patient. Pulmonary function tests were performed. Skin prick tests were also performed for each patient. Results were assessed depending on atopy in the family history and diagnostic groups of Asthma / Asthma and Allergic Rhinitis.Results: In this study, 236 asthmatic patients in total who were 6-18 years old were included: 155 (65.7%) were male and the mean age was 7.9 (7.4-12.2) (IQR) years. The number of asthmatic patients was 163 while the number of patients who had both asthma and allergic rhinitis was 73. The frequency of sensitivity to at least one allergen was 42.6 % according to the result of the skin test. The maximum sensitivity was for pollens with a rate of 23.6%. Atopy frequency according to the diagnostic groups was 39% in asthmatic patients and 52% in those with asthma and allergenic rhinitis (p=0.061). Theallergen sensitivity was 39.8% in the group with a family history of atopy and 44.3% in the group without a family history of allergensensitivity (p=0.496).Conclusion: Allergen sensitivity has an important role in asthma in childhood. Allergen sensitivity should therefore be investigated for allpatients who are diagnosed as asthma. The socio-demographic characteristics and family history of each patient who has a skin test doneshould be carefully questioned in terms of other concomitant allergenic diseases. Our study is similar to other pollen sensitivity studies ingeneral. As expected, the frequency of allergen sensitivity was higher in the group that had asthma together with allergenic rhinitis than thosewith asthma only. Allergen sensitivity was lower in our study for the group with a family history while it was expected to be higher.