There are more reasons for getting up in the morning with phlegm in the throat, and common causes may include reflux pharyngitis, chronic sinusitis and chronic bronchitis. It is necessary to target treatment according to the cause of the disease. 1. Reflux laryngitis: gastric acid reflux stimulation will cause an increase in laryngeal secretions, accompanied by dry throat, itchy throat, foreign body sensation in the throat, burning sensation and other symptoms, the patient sleeps at night due to the position of the flat, gastric acid reflux is more likely to be more severe symptoms in the morning. 2. Chronic sinusitis: The main symptoms of chronic sinusitis include nasal congestion, pus flow, decreased sense of smell and so on. After lying down at night, due to the change of body position, the phenomenon of nasal mucus flowing backward into the throat can occur, forming phlegm, and the symptoms of phlegm in the throat can appear in the morning when you get up. 3. Chronic bronchitis: chronic bronchitis is mainly manifested as coughing, coughing up phlegm, need to be combined with lung CT and other tests, active anti-inflammatory, expectorant, nebulizer and other symptomatic treatment. If you get up in the morning with phlegm in your throat, it is recommended that you go to a regular hospital to find out the cause of the disease and actively cooperate with the professional doctor’s treatment.