The tongue coating is white and the mouth is bitter in the morning, most of the consideration is that the liver and stomach disharmony (the function of the liver and the stomach to rise and fall of the function of the disharmony) caused by, should consult the doctor to find out the cause of the disease. Liver-stomach disharmony is a disease caused by the disharmony of the liver (abnormal function of the liver’s channeling), the stomach’s disharmony (obstruction of the stomach’s function of ventilation and descent), and the disharmony of the internal organs’ functions. When liver qi is not comfortable, it will lead to gastric qi upward reversal (gastric qi rises instead of descending), bile flows backward into the stomach, and when gastric qi upward reversal occurs, bitter bile enters into the mouth to cause bitter taste in the mouth. It is difficult to judge by this symptom alone, and it cannot be ruled out that it is caused by other factors. It is recommended that the patient should consult the doctor in time for a Chinese medicine examination to clarify the cause of the disease and to treat the cause of the disease.