What is the reason why I always have phlegm in my throat when I wake up in the morning?

Getting up in the morning there is always phlegm in the throat may be caused by chronic laryngitis, chronic bronchitis, gastroesophageal reflux and other diseases.
1. Chronic pharyngolaryngitis: patients with chronic inflammation of the laryngeal mucosa, mucosal congestion, edema, plasma cell hypertrophy, may secrete a large amount of phlegm, often adhering to the mucous membrane in the pharynx, all the morning there is always phlegm in the throat, due to the phlegm is thicker not easy to discharge, irritation of the pharynx, and sometimes there are symptoms of coughing in the early morning, and there may be a dry pharynx, sore throat, foreign body sensation and other symptoms.
2. Chronic bronchitis: patients with bronchial mucosal cell degeneration, often secrete white or plasma-like sputum, when the condition is mild, at night, may be due to the secretion of sputum is less, thicker, cilia movement is reduced, not enough to stimulate the body, so that the body to cough up phlegm, so there is always sputum in the throat in the morning.
3. Gastroesophageal reflux: When you lie down to sleep, the stomach content is more likely to reflux to the throat, due to the acidic reflux, may damage the throat, so that the mucous membrane is congested, the secretion increases, which can be manifested in the morning get up there is always phlegm in the throat.
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