Background: Asthma prevalence in children has increased 58% since 1980. Asthma is a chronic nflammatory disorder characterized with the intermittent and variable periods of airway obstruction. Asthma accounts for 30% of pediatric hospitalizations, for approximately one third of school absences and for numerous other psychosocial complications. Childhood bronchial asthma has multifactor causations. Geographical location, environmental, racial, as well as factors related to behaviors and life-styles are associated with the disease. Aim: Our aim of this study is to identify the determinants of childhood asthma and to increase the awareness for house contacts of patients for the hazards of 
asthmatic determinants on health of their children. Methods: It was a descriptive study carried out on patients attending outpatient clinics in three medical centers in New Minia City, Minia governorate, Egypt, in the period between January and April 2019. Results: A total of 135 patients with already diagnosed asthma were included in this study, the age of the children ranged from one to ten years old .In our study there was high percent of asthmatic children live in house hold smokers, there was high percent of asthmatic children with exposure to perfumes, detergents and foods.