Yellow sputum every morning may be seen in the following conditions: i. Chronic bronchitis. There is often recurrent coughing and coughing sputum, usually related to the seasons, and it tends to flare up in autumn and winter or winter and spring, and there is still coughing and coughing aggravated by yellow sputum every morning, suggesting a bacterial infection. Second, bronchiectasis. It manifests as repeated coughing, coughing yellow sputum, and sometimes hemoptysis. Yellow sputum is a very typical symptom of bronchiectasis, and the amount is large, sometimes mixed with blood. Third, pharyngitis can also appear in the morning with coughing and dryness, accompanied by coughing sputum, and sometimes yellow sputum can appear when pharyngitis is aggravated. Also coughing and coughing sputum can occur when you have a cold.