The reason why the throat has sticky white phlegm that can’t be spit out for a long time may be chronic pharyngitis, reflux pharyngitis, chronic bronchitis and so on. 1. Chronic pharyngitis: chronic inflammation stimulates the pharyngeal mucosa to become congested, producing white secretions and forming sticky white phlegm that is not easy to cough up and spit out. 2. Reflux pharyngitis: stomach contents reflux pharynx, stimulate the mucous membrane of the pharynx to cause increased secretion, the formation of viscous white sputum spit. 3. Chronic bronchitis: chronic non-specific inflammation of the trachea, bronchial mucosa and its surrounding tissues. Clinically, coughing and sputum are the main symptoms. It is usually in the shape of white mucus or plasma foam, occasionally with blood. More sputum is discharged in the early morning, and sputum discharge can be stimulated by getting up or changing body position. If there is sticky white phlegm in the throat and spitting is not good for a long time, you should go to the hospital in time to avoid delaying the condition.