Bitter mouth may be caused by poor diet, may also be the emergence of burning mouth syndrome, digestive system diseases, etc., generally can be dietary modification or drug treatment for the cause. 1. Dietary modification: clinically, after the appearance of bitter mouth can be dietary modification, eat more light and nutritious food, drink more water, but also need to move the body appropriately, to keep the oral cavity clean, at least two times a day brushing the teeth, can effectively alleviate the symptoms of bitter mouth. 2. Burning Mouth Syndrome (BMS): a common oral disease in menopausal women, characterized by dry mouth, burning sensation and abnormal taste. There is no effective treatment for this disease, if necessary, ibuprofen and other drugs can be used to relieve the pain. 3. Digestive system diseases: If there is indigestion, it can be manifested as severe bitter mouth, which can be treated with medication under the guidance of doctor, such as bifidobacteria, lactobacillus and so on. Eat a light diet and less greasy food to avoid bitter mouth symptoms. If the symptoms of bitter mouth are obvious and cannot be relieved, you should consult a doctor in time and standardize the treatment under the guidance of a physician, so as not to delay the condition.