Bitter mouth is considered to be related to various diseases such as cholecystitis and hepatitis, and may also be caused by indigestion. 1. cholecystitis, some patients with cholecystitis due to bile metabolism is affected, may lead to bile stasis, reflux into the mouth to appear in the mouth bitter symptoms. 2. Hepatitis, patients with hepatitis due to liver dysfunction, may lead to loss of appetite, anorexia, bloating, nausea and other symptoms, and therefore will produce a bitter reaction in the mouth. 3. indigestion, clinically indigestion after digestion and absorption capacity is affected, food aggregation may lead to acid reflux, bitter mouth symptoms. Usually need to maintain good eating habits, light diet, if there is obvious discomfort need to consult a doctor.