There is no 'percent calculation' for asthma
as it is a polygenic disease, that is, a disease caused by the involvement of many genes. If it were a simple monogenic disease (1 gene) then we could have calculated your daughter?s chances of having asthma. Unfortunately, asthma is a very diverse disease and it is very difficult to understand the causes as well as the symptoms. It is thought, that the disease is caused by both genetic and environmental factors. A risk of being prone to the disease can be passed on through your parents, but also the air that she is exposed (pollution), the sicknesses she get?s ( airway infections) all play a role in the development of the disease.