Itchy throat with white sticky phlegm may be related to chronic pharyngitis, allergic pharyngitis, reflux pharyngitis and other causes. 1. Chronic pharyngitis: chronic inflammation of the mucous membrane, submucous membrane and lymphatic tissue of the pharynx. The pharynx may have various discomforts such as foreign body sensation, itching and burning sensation, the back wall of the pharynx is often stimulated by mucous secretion, and there may be frequent irritating cough in the morning, coughing up white mucous sputum. 2. Allergic pharyngolaryngitis: allergic people, repeated exposure to allergens can stimulate the throat, causing itching, increased secretion and other symptoms. 3. Reflux laryngitis: due to the reflux of stomach contents to stimulate the throat, can cause chronic inflammation of the mucous membrane of the throat, resulting in an itchy throat with white mucous phlegm. It is recommended that people with itchy throat with white sticky phlegm go to the hospital in time to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor.