No one in my family is asthmatic. So, why is my child asthmatic?

No one knows exactly why some people develop asthma. Experts think it might be a combination of environmental factors and genes. People with asthma may have a parent or other close relative with asthma or allergy but it is not necessary that one gets asthma only if someone in the family is asthmatic. For instance, if one has sensitive lungs and has been exposed to asthma triggers, one may develop asthma