Bitter mouth can usually be improved by the following methods: 1, medication: patients can take drugs to promote gastrointestinal power, such as morpholine, cisapride, can effectively promote gastrointestinal function of peristalsis, so that the abnormal retrograde peristalsis disappeared, digestive juices can be smoothly into the small intestine, thus alleviating the bitter taste of the mouth; 2, other methods: for example, through appropriate exercise and reasonable work and rest system of physical conditioning. Work stress or mental depression, will have a negative impact on the digestive function, if the gastrointestinal function is affected, resulting in the liver in the secretion of bile can not be through the normal pathway down to the small intestine, but reflux to the stomach, there will be a bitter mouth performance.