To determine whether you have bronchial asthma, you can mainly judge from the following aspects: 1. Whether there are typical clinical symptoms of bronchial asthma attacks, such as exposure to allergens or allergens, cough, wheezing, chest tightness, shortness of breath. 2. Whether you can hear a wide range of rales in the lungs. 3. Wheezing and chest tightness can be relieved on their own or through asthma medication. 4. By doing pulmonary function tests to determine, such as bronchodilator test is positive or bronchial excitation test shows positive, from the above points can determine whether there is bronchial asthma. Bronchial asthma is a chronic airway inflammatory response disease, it is recommended to try to avoid contact with allergens.