Patients who have white sputum in their cough may be related to the following causes: 1. It may be related to the patient’s recent consumption of too much greasy food, and it is recommended that the patient take light, easily digestible food as the mainstay in the near future and then observe. 2. If there are symptoms of cold in the near future, it may also lead to white sputum in the cough, and wait until the cold disappears and then observe whether white sputum will still appear. 3. If there is allergy to pollen or dust, it may also lead to 4. The presence of chronic bronchial inflammation, such as chronic bronchitis and bronchial dilation, can easily lead to high airway secretion and increased white sputum. If the amount of white sputum is relatively small and the duration of the cycle is short, no additional treatment is needed. If it lasts for a longer period and is more abundant, you should go to the hospital for diagnosis and treatment according to the actual situation of the patient.