What causes phlegm in the throat

Phlegm in the throat may be related to rhinitis or sinusitis, chronic pharyngitis, influenza and other causes.
1. Rhinitis or sinusitis: Inflammatory reaction due to infection, allergy, etc., resulting in increased nasal secretions flowing back into the throat, resulting in phlegm in the throat.
2. Chronic pharyngitis: prolonged open-mouth breathing and repeated stimulation of the pharynx by inflammatory secretions and other factors can lead to chronic inflammatory reaction of the pharyngeal mucosa, resulting in increased pharyngeal secretions, which can be manifested as phlegm in the throat.
3. Influenza: Infection with influenza virus and other viruses can cause an increase in pharyngeal mucosal secretions, resulting in the phenomenon of phlegm in the throat.
It is recommended that people with phlegm in the throat go to the hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of the doctor.