The reasons for always having phlegm in the throat usually include nasopharyngeal inflammation, bronchitis, and lung diseases. 1. Nasopharyngeal inflammation: such as rhinitis, sinusitis snot backflow, chronic pharyngitis leads to increased pharyngeal secretions and viscous, the above diseases make the patient feel that there is always phlegm in the throat, often coughing or do the action of clearing the throat. 2. Chronic bronchitis, the performance is perennial phlegm in the throat mouth, sometimes will make a snorting sound. 3. Lung diseases: such as bronchial dilatation, chronic obstructive pulmonary disease, etc., the performance of coughing and spitting, this is because most of the phlegm in the depths of the need to cough hard to cough out. The throat always have phlegm to timely medical treatment, identify the cause of the disease to give symptomatic treatment, improve the symptoms. Normally, you can drink a small amount of lukewarm water to keep the respiratory tract moist, which is conducive to coughing up phlegm.