What's wrong with waking up with a bitter mouth?

1.

Poor

oral hygiene habits, such as frequent brushing and gargling, may lead to a bitter sleep.

Patients with oral diseases such as gingivitis and caries may wake up with bitter taste due to increased pathogens in the mouth.

3

. Patients with gastrointestinal diseases

as Helicobacter pylori infection, chronic gastritis and peptic ulcer may not digest food well due to weakened digestive function of the body. After overnight fermentation, mixed with gastric acid and reflux, they may wake up with bitter taste.