White phlegm in the throat may be caused by reflux pharyngitis, chronic rhinitis or chronic pharyngitis. 1. Reflux pharyngitis: the reflux of gastric contents into the pharynx causes this disease, resulting in pharyngeal mucosal inflammatory edema, glandular secretion increases, appearing in the throat with white phlegm spitting, but not coughing. 2. Chronic rhinitis: chronic rhinitis is a chronic inflammation of the nasal mucosa, the main symptoms of mucosal swelling and increased secretion, if the secretion flows into the mouth through the nasopharynx, it can also be manifested as white sputum. 3. Chronic pharyngitis: If you suffer from chronic pharyngitis, you will usually have the symptom of discomfort and nausea in the throat, and due to the stimulation of inflammation, it may lead to white secretion in the throat area. The throat has white phlegm without coughing recommended to the regular hospital for relevant examination, clear diagnosis, and actively comply with the doctor’s instructions standardized treatment, so as not to delay the condition, affecting the health of the body.