Bad breath and farting may be caused by indigestion, gastrointestinal pathology, gastrointestinal dysfunction, Helicobacter pylori positivity, etc. In addition, there is also a certain relationship with diet, oral cleansing is not in place. 1. Dyspepsia: Eating too much high-protein, high-fat food or overeating can cause dyspepsia symptoms, which can lead to bloating, bad breath, and farting, and can be treated with oral medication, such as gastrointestinal tablets. 2. Gastrointestinal tract lesions: such as acute and chronic gastritis, gastric ulcer, chronic colitis, etc., due to gastrointestinal hypoplasia, resulting in poor digestion and absorption of food, bad breath and farting symptoms can occur. 3. Gastrointestinal dysfunction: due to gastrointestinal dysfunction, gastrointestinal peristalsis is slowed down, which can cause bad breath and farting symptoms, and can be accompanied by diarrhea and abdominal pain. 4. Positive Helicobacter pylori: some people can be asymptomatic after being infected with Helicobacter pylori; some people can have bad breath and increased farting, which can even cause gastric ulcers, stomach tumors and other diseases. In addition, if the mouth is not cleaned properly, the symptoms of bad breath can appear; when eating soy products, white radish and other food that produces more gas, the symptoms of bad breath and farting can also appear, and it is necessary to go to the hospital for further examination to confirm the diagnosis, and then further treatment.