There are no clear indicators to predict who is prone to asthma and who is not. Available studies suggest that factors associated with the development of asthma in children include: 1. Those who develop croup during infancy or early childhood respiratory infections; 2. The close relationship between allergies and asthma. If a child in the family is allergic (e.g., if there is a history of eczema in infancy), special attention should be paid to whether he shows any of the above signs of childhood asthma; 3. Family history of asthma; 4. Continuous exposure to cigarette smoke or allergens such as dust mites, dust, mold, cockroaches, pets, etc. The allergens, triggers, symptoms, and regression may be different in any two asthma patients. Asthma is a very individualized disease. The most important thing is to observe your child carefully and listen patiently to his or her discomfort. If asthma is suspected, it should be examined by a physician with expertise in the field.