There are many diseases to be alerted to dry throat, mainly laryngitis, diabetes, anemia, dry syndrome and so on. 1. Pharyngitis: pharyngitis, laryngitis, tonsillitis and other diseases, can show the phenomenon of dry throat, accompanied by a foreign body sensation in the throat, itching, pain and other symptoms. 2. Diabetes mellitus: diabetes mellitus due to osmotic diuretic effect, can cause polyuria, polydipsia, polyphagia, weight loss and other phenomena, at the same time will cause dry throat. 3. Anemia: Anemia can also lead to dry throat, accompanied by foreign body sensation in the pharynx, difficulty in swallowing, pale pharyngeal mucosa. 4. Dry Syndrome: Dry Syndrome can show dry throat, accompanied by dry mouth, sore throat and other symptoms. Dry throat needs to be alert to many diseases, after the symptoms suggest that patients go to the hospital in time to improve the examination, clear diagnosis and give standardized treatment, so as not to delay the condition.