Asthma examination items vary from person to person, and the examination items vary from one level of hospital to another, some hospitals have examination items and some do not. Commonly used tests are mainly the following: First, blood routine, the cost of our hospital, for example, the cost of tertiary hospitals less than 30 yuan, mainly to see eosinophils, basophils. Second, IgE test is to clarify the indicators of systemic allergy, the cost is about 100 yuan. Third, pulmonary function test requires pulmonary ventilation function test and bronchodilatation test, the total cost is about 200 yuan, which can clearly diagnose asthma. However, some patients can also be diagnosed with asthma based on symptoms and signs, all of which vary from person to person.