The cause of bad breath in 12-year-old children may be infected with Helicobacter pylori, or it may be caused by indigestion and mouth ulcers, which are analyzed as follows.
1. Helicobacter pylori infection: If a child is infected with Helicobacter pylori, it will mainly cause digestive symptoms. Helicobacter pylori will decompose urea to produce ammonia after it is planted in the gastric mucous membrane, and ammonia can reflux into the mouth through the gastroesophageal tube, which will lead to a bad taste inside the mouth.
2. indigestion: if the child eats a lot of cold, greasy food, resulting in intestinal flora imbalance, gastrointestinal dysfunction, gastrointestinal food digestion is not sufficient to produce a large amount of gas reflux through the esophagus, bad breath can also occur.
3. mouth ulcers: such as children suffering from mouth ulcers, because of localized inflammation and pain in the mouth, resulting in bad taste can also lead to the occurrence of bad breath.
There may be other causes of halitosis in 12-year-olds, so parents are advised to take their children to the hospital for a checkup to identify the causes of halitosis and treat the symptoms.