Child asthma is one of the most common physical impairments in children. It affects about 4 million kids under 18 each year, and it is responsible for 14 million missed school days annually. Asthma is an inflammation of the bronchial airways leading from the trachea to the lungs that causes the airways to well, produce excess mucus, and contract involuntarily. This is what causes the tightness of chest and wheezing we equate with having an asthma attack. Asthma is an allergic reaction most frequently caused by inhaling allergens such as dust or pollen. Weather, exercise, emotional stress, and infections are also known to precipitate attacks. The majority of children with asthma also suffer from other environmental allergies. Adults with asthma are more likely to have children with asthma than adults without the condition.

In the present book, fourteen typical literatures about child asthma published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on medical science, respiratory disease, epidemiology, ect. We hope this book can demonstrate advances in child asthma as well as give references to the researchers, students and other related people.