Salty taste in the mouth may be caused by dietary reasons, or it may be a manifestation of central system diseases, oral diseases, etc. Patients should consult the doctor in time to find out the specific causes and follow the doctor’s instructions. 1. Dietary causes: If the food is too salty and the water intake is insufficient, salty taste in the mouth and dry mouth and thirst may occur. 2. Diseases of the central system: patients may suffer from cerebral hemorrhage or cerebral infarction, which may cause abnormal nerve function in the mouth, resulting in abnormal sensation and therefore a salty taste in the mouth. 3. Oral diseases: patients with periodontitis, wisdom tooth inflammation, periodontal abscess, which will lead to a large amount of inflammatory secretions and bacteria in the mouth, resulting in a salty taste in the mouth.