Bitter mouth is a very common symptom, but why does it occur? What are the diseases that cause bitterness in the mouth? Chinese medicine has recognized the symptom of bitter mouth for a long time. As early as in the book of “Spiritual Pivot – Four Times of Qi”, there is a record that “the evil is in the bile and the rebellion is in the stomach. We know that bile is very bitter, and when there is bitterness in the mouth, it is easy to think that it is related to bile. By analyzing the discussion of mouth bitterness in the Ling Shu, we also found that in addition to bile, mouth bitterness is also closely related to the stomach. What is this about? It turns out that Chinese medicine believes that both the gallbladder and the stomach are descending in order to be smooth, which means that it is the normal physiological state for the gallbladder and stomach qi to descend, and if the stomach qi does not descend, the stomach qi will go up, and once the stomach qi goes up, the gallbladder qi will not be able to descend normally. Huang Yuan-you, a famous doctor of the Qing Dynasty, has pointed out that “the bile is located in the wakefulness, with the stomach qi downward, the stomach qi upward rebellion, then the bile no downward path.” In addition to bitterness in the mouth, some symptoms such as acid reflux, belching, poor appetite, gastric distention and stomach pain can also occur, such as bile reflux gastritis, which is a typical bile and stomach disease. In addition to bile and stomach, is mouth bitterness also related to other internal organs? There is another passage in Su Wen – The Book of Strange Diseases: “What is the name of the disease of bitterness in the mouth? How do you get it? Qibo said: the name of the disease is called gall bladder. The liver, the general, depends on the gallbladder, the pharynx for the make. This person, the number of plans and considerations are not decided, so the gall bladder deficiency, gas overflow and the mouth for the bitter.” This paragraph is very helpful for us to have a deeper understanding of mouth bitterness. First of all, the ancients believed that mouth bitterness belongs to bile disease, that is, a kind of bile-heat disease; secondly, the formation of this disease is related to the liver, and Chinese medicine believes that the liver is the official of the general, the master of planning, and the bile is the official of the middle, the master of deciding, if a person is always planning and cannot decide, the bile qi will go wrong, and the bile qi will be disturbed along the meridians and veins, and then mouth bitterness will appear; thirdly, from this passage, we can also see that mental factors are also related to mouth bitterness Those who are always thinking and less decisive, are they similar to what we call depression, anxiety, or even depression and anxiety nowadays? Chinese medicine calls it liver qi stagnation or liver depression and qi stagnation. Combined with clinical practice, we summarize the diseases related to mouth bitterness: 1, gallbladder diseases: such as cholecystitis, gallbladder stones, gallbladder polyps, etc. 2.Liver diseases: various kinds of hepatitis, cirrhosis, liver cancer, etc. 3, gastric diseases: bile reflux gastritis, erosive gastritis, etc. 4.Mental diseases: depressive state, anxiety state, etc. Chinese medicine has obvious advantages in treating diseases related to mouth bitterness. If your mouth bitterness is always bad, you may go to the hospital for relevant examination and use Chinese medicine to treat it.