The phenomenon of always dry throat may be physiological reasons, there may also be pathological reasons, such as acute pharyngitis, dry syndrome, etc.. 1. Physiological reasons: due to the body’s insufficient water or talk too much, resulting in reduced secretion of salivary glands or excessive loss of water, which may appear in the throat is always dry. 2. Pathologic causes: (1) Acute pharyngitis: acute inflammation of the mucous membrane and surrounding tissues of the pharynx caused by bacterial, viral and other pathogenic infections, often appearing as dry and itchy throat, sore throat and other typical symptoms. (2) Dry syndrome: a chronic inflammatory autoimmune disease characterized by decreased secretion of the lacrimal and salivary glands, which may also result in an old dry throat. In addition to the above reasons, there may also be nasal diseases, caused by poor breathing leading to open-mouth breathing, it is recommended to consult a doctor in a timely manner to identify the cause of the disease, and actively cooperate with the doctor’s treatment.