Doctor, I am struggling so much with gastritis and a gastric ulcer. Tests showed I also have Helicobacter pylori; could this really progress to gastric cancer? This is one of the most common concerns patients share with me. Indeed, Helicobacter pylori is common enough to infect more than half of the global population, yet it remains a primary culprit in gastrointestinal disease that must never be taken lightly.
This bacterium colonizes the gastric mucosa and triggers inflammation, and in severe cases, it is known to raise the risk of gastric ulcer, duodenal ulcer, and gastric cancer by up to two to three times. Surprisingly, a high Helicobacter infection rate is cited as one of the reasons for the high incidence of gastric cancer in Korea. Just as Donguibogam warned against an environment where the stomach wall weakens—describing stomach heat and stomach yin deficiency—modern medicine likewise focuses on the process by which Helicobacter pylori damages the gastric mucosa and continuously drives inflammatory responses.
To protect itself from gastric acid, Helicobacter pylori secretes urease, raising the pH of the gastric acid. With its spiral shape, it burrows into and colonizes the gastric mucosal layer, releasing VacA and CagA toxins that directly injure gastric mucosal cells and induce chronic inflammation. This chronic inflammation leads to mucosal atrophy, which progresses through intestinal metaplasia, where the gastric mucosa transforms to resemble small intestine or colonic mucosa, and increases the risk of progressing to gastric cancer.
Symptoms vary across individuals; many cases remain asymptomatic, but epigastric pain, heartburn, bloating, dyspepsia, nausea, and early satiety are common. In severe cases, it can even lead to hemorrhage from a gastric ulcer and anemia. Diagnosis is primarily made through endoscopic biopsy, urea breath test, blood test, and stool antigen test. Once the bacterium is confirmed, eradication therapy is administered, typically involving antibiotics and an acid suppressor for one to two weeks. This treatment is critical because its preventive effect against gastric cancer is clearly proven. Active eradication therapy is especially recommended for individuals with a family history of gastric cancer, atrophic gastritis, or intestinal metaplasia.
However, simply eliminating the bacterium is not the end of the journey. Complex factors—such as our lifestyle habits, immunity, and stress levels—influence whether Helicobacter pylori thrives and leads to gastrointestinal disease. Just as Donguibogam discussed spleen-stomach deficiency, modern medicine also recognizes that gastrointestinal health extends far beyond mere digestion to connect intimately with systemic immunity. Research on the gut-brain axis and the microbiome reveals that gastrointestinal health influences various aspects of systemic well-being, including stress, depression, and immune diseases. Therefore, even after Helicobacter pylori eradication, consistently caring for your gastrointestinal health, managing stress, and maintaining balanced dietary habits remain vital. Please remember that your whole body thrives only when your stomach is at peace.
