Coughing up yellow pus sputum to white pus sputum generally indicates that the condition has a tendency to improve, but it is also necessary to analyze the specific situation, if the patient has a high fever, shortness of breath, chest tightness, etc., it may be an aggravation of the disease, and it is recommended to go to the hospital to improve the relevant examination, to observe the existence of inflammation. 1. Coughing up sputum is a common symptom of respiratory tract infections, coughing up yellow pus sputum often suggests bacterial infections, which are more common in lung abscesses or bronchiectasis. If the cough turns from yellow sputum to white, it means that the epithelial cells and mucous membranes are being repaired and the infection is under control, which is a sign that the condition is getting better. 2. If coughing white purulent sputum, but combined with fever, chest tightness, dyspnea and other symptoms, is often a manifestation of disease aggravation, it is recommended to improve the chest radiographs, blood routine, C-reactive protein and other related tests, if it is clear that the bacterial infection, you need to carry out anti-infective such as cefuroxime, moxifloxacin, etc., and combined with expectorants such as aminobromine oral solution. If there is any discomfort, consult a doctor as soon as possible to avoid delay.