There are many reasons for the dryness of the upper part of the throat, which may be caused by bad habits, or it may be caused by throat diseases, colds and other diseases. 1. Bad habits: such as low water intake, excessive use of the voice, spicy and stimulating food, open-mouth breathing, excessive alcohol consumption, long-term smoking, etc. will appear in the upper part of the throat dry. 2. Diseases of the pharynx: caused by nasopharyngitis, acute and chronic pharyngitis and other factors, the upper part of the throat will have diffuse chronic inflammation, which will lead to localized dry symptoms. 3. Cold and flu: the disease is usually caused by viral infection, the throat may appear inflammatory reaction, resulting in symptoms of dryness in the upper part of the throat. 4. Others: Inflammation of peripheral tissues, such as diabetes, reflux gastroesophagitis, sinusitis, etc., can also affect the throat, leading to dryness and discomfort in the upper part of the throat. There are many reasons for the dryness of the upper part of the throat, and it is recommended that patients improve their dietary and lifestyle habits and go to the ENT department of the hospital as soon as possible to find out the cause and treatment.