Dry throat may be a precursor to acute pharyngitis, or it may be a symptom of diabetes, anemia, dry syndrome, hypothyroidism and other diseases, but not a precursor to any disease. 1. Diseases of the pharynx (1) Acute pharyngitis: patients will experience dryness and burning sensation in the throat, which may also be accompanied by pharyngeal pain. (2) Chronic pharyngitis: there will be dryness, burning sensation, foreign body sensation in the pharynx, and irritating cough and nausea in the morning. (3) Chronic tonsillitis: dryness of the throat, foreign body sensation, itching and other symptoms may occur, irritating cough, sore throat and other symptoms. 2. Non-pharyngeal diseases (1) Diabetes mellitus: patients may have symptoms of polyuria, followed by symptoms of dry throat or thirst. (2) Anemia: anemia caused by decreased erythropoiesis, hemolysis, etc., which may be followed by symptoms such as dry throat and pale pharyngeal mucosa. (3) Dry syndrome: symptoms of dry throat may occur, accompanied by sore throat and difficulty in swallowing. (4) Hypothyroidism: patients may have dry throat, choking sensation, and may also have symptoms such as chills, fatigue, swelling of hands and feet. There are many factors causing dry throat, it is recommended to go to the hospital in time, under the guidance of the doctor, to identify the causes and timely treatment.