Cold healed throat with sticky phlegm, may be associated with colds after the general body resistance is poor, easy to pharyngitis, lung infections, chronic lung disease, etc., but also may be related to lifestyle habits. 1. Pharyngitis, the most common cause of the disease, inflammation can stimulate the throat area, resulting in more phlegm secretion and sticky. 2. Lung infections, where bacteria or viruses can affect sputum secretion and change the shape of the sputum, are also common causes. 3. Chronic lung diseases, such as chronic obstructive pulmonary disease (COPD), can cause thick and sticky sputum, which is also a typical symptom. 4. Lifestyle habits, such as smoking or being exposed to fumes for a long time, can also cause similar symptoms. The specific cause of the disease needs to be clarified after medical examination, and timely treatment according to medical advice.