What is the reason for the bitter mouth in the middle of the night

There are many reasons for bitter mouth in the middle of the night. The most common reason may be related to diet. If you add meals before bed or eat a lot of high-fat foods, this may lead to changes in gastrointestinal motility or bile secretion, resulting in bile reflux and bitter mouth. In addition, if the patient has gallstones, cholecystitis and other diseases, it may also affect bile secretion. Too much bile will be blocked together and bitter mouth phenomenon will occur. In addition, if the patient usually does not pay attention to oral hygiene, periodontitis, gingivitis and other diseases, there will also be bitter mouth or bad breath phenomenon.