Dry mouth and bitter mouth in the morning is a common symptom, there are five main reasons: First, the patient will have dry mouth, bitter mouth, fever, runny nose and other cold symptoms after getting cold or rain, you can use antiviral drugs and symptomatic treatment under the guidance of a doctor to avoid getting cold. Second, depression, sadness will make the patient appear dry mouth, bitter mouth, can vent the mood through exercise, drinking more barley tea can also help relieve the unpleasant feeling. If the patient complains of dry mouth, bitter mouth with bad breath and sticky mouth, and observes that the stool is sticky, it should be suspected that the body is heavy with damp heat, so take drugs to remove damp heat, and pay attention to a light diet. Fourth, liver and gallbladder diseases or poor gastrointestinal function lead to bile reflux, which can also appear dry mouth and bitter mouth. V. Insufficient middle energy can also lead to dry mouth and bitterness.