A, bitter mouth and internal heat related to the holiday season, we visit friends and relatives, according to traditional Chinese customs, eating is an important topic, most families in order to entertain guests, large fish and meat, fried oil cooking; playing cards and chatting, nuts food is also conventional. The last meal after the next, eating and drinking excessively, often resulting in increased burden on the gastrointestinal tract, food in the prescribed time can not be emptied, easy to cause food accumulation, accumulation of long depression and heat. This internal heat can be directly from the spleen and stomach, but also can spread to the liver and gallbladder, and even the heart and lungs. Therefore, mouth bitterness is often a manifestation of heat accumulation in the body, short-term simple mouth bitterness we must not panic, first from the diet to adjust, light more vegetarian less meat, drink more water, eat more fresh vegetables and fruits, labor and rest. Second, mouth bitterness and liver and gallbladder disorders related to the Yellow Emperor’s Classic of Internal Medicine: “liver heat is bile drainage mouth bitterness”. It was pointed out for the first time that bile heat and liver heat are the main causes of mouth bitterness, and bile drainage and overflow is the main pathogenesis. At the same time, mouth bitterness is also one of the key points in the identification of the evidence of Xiao Chai Hu Tang in the Treatise on Typhoid. Patients suffering from chronic liver and gallbladder diseases are also prone to mouth bitterness. Combined with clinical practice experience, we believe that mouth bitterness is related to liver and gallbladder disorders. Therefore, in daily life, we should pay attention to protecting the liver and gallbladder, “anger hurts the liver”, so it is very important to keep the emotions comfortable; 11:00 pm to 3:00 am is the time of the circulation of the liver and gallbladder meridian, so we should get enough sleep during this time, otherwise it is easy to hurt the liver and gallbladder for a long time; alcohol hurts the liver, so excessive alcoholism should also be avoided. In addition, mouth bitterness is also related to oral inflammation and taking certain antipsychotic drugs, and a very small percentage of mouth bitterness is identified by Chinese medicine as a deficiency cold pathology. Some researchers analyzed 286 cases of patients with complaints of bitter mouth in the past 14 years of clinical care, among which 260 cases could be identified as the primary cause, with intestinal irritation syndrome, neurosis, chronic gastritis and peptic ulcer, functional dyspepsia, chronic liver disease, chronic cholecystitis, etc. being the most common causes of bitter mouth in that order. Therefore, according to Chinese medicine, any discomfort in the body is often an outward manifestation of “disease”. For those who suffer from bitterness for a short period of time, they can find out the approximate cause of bitterness through the above two paragraphs and make self-adjustment in terms of diet and living. If the bitterness does not improve for more than a week, you can go to the Traditional Chinese Medicine Department for Chinese herbal medicine treatment; if the bitterness does not improve, we suggest that you have a routine physical examination to rule out other organic diseases or causes of bitterness.