Background: Asthma is a chronic heterogeneous disease usually characterized by chronic airflow limitation. The risk factors of asthma include genetic, environmental, host factors and family history. neither sufficient nor necessary for the development of asthma.So the aim of this study to find some risk factors of asthma in asthmatic patients and some worse and trigger factors. Methodology: A prospective case control study, One hundred patients were participated in the study with diagnosed asthma before 6 month as patient group conducted at asthma and allergy center and another one hundred person were participated with no history of asthma as control group in shar hospital in Suliamani city from June 2021 to September 2021 Result: Both groups were comparable in age and gender .No significant difference between case and control groups regarding marital status, employment (p -value > 0.05).while level of education had a significant relation to asthma patient just 8% of patient had high educational (P-value =0.01).in addition to residency, 86% of patients live in rural area with p=0.00. A significant difference were found between family history and participants, (31%) of cases had family history of asthma with (P-value =0.04.) Conclusion: This study concludes that level of education, residency, and family history had direct effect on asthma initiation.