H. pylori is one of the main causes of chronic gastritis. Infection with this bacterium can lead to inflammation of the gastric mucosa, and prolonged inflammation may result in chronic gastritis.
H. pylori infection is closely related to the occurrence of peptic ulcers, such as gastric ulcers and duodenal ulcers. The survival and reproduction of the bacteria in the stomach may increase gastric acid secretion, thereby damaging the mucosa of the stomach and duodenum, leading to ulcer formation.
Long-term infection with H. pylori increases the risk of stomach cancer. H. pylori can cause chronic inflammation of the gastric mucosa, which may lead to dysplasia of the gastric mucosa, eventually developing into stomach cancer.
This is a rare tumor associated with H. pylori infection. The infection may cause excessive proliferation of B cells in the gastric mucosa, forming lymphoma.
H. pylori infection can cause bad breath. This is because the metabolic products of the bacteria in the stomach may be exhaled through the respiratory system, leading to poor breath.
Chronic gastritis and peptic ulcers can affect gastrointestinal function, impacting the digestion and absorption of food, leading to malnutrition.
Since H. pylori infection may lead to severe gastric diseases such as stomach cancer, it can cause psychological stress and anxiety in those infected.