What causes bad breath and diarrhea?

Aug 24, 2022 Source: Cainiu Health
Disease description:

Yesterday I went out with a friend, who told me I had bad breath. Today I also have a bit of diarrhea. What could be causing this?

Doctor's answer (1)
Dr. Zhang Lei
Bad breath and diarrhea may be caused by chronic gastritis, indigestion, or other reasons. If gastrointestinal dysfunction is due to improper diet, food and bacteria in the intestines can ferment in digestive fluids, leading to accelerated intestinal motility, which may result in symptoms such as bad breath and diarrhea. Treatment should primarily focus on gastrointestinal symptoms, and it is best to visit a hospital for examination and further treatment.