H-pylori can become an originating cell or trigger for cancer. H-pylori can migrate or metastasize via the lymphatic system, invade the brain, and cause cancer at remote sites—not just in the stomach. Patients with H-pylori are six times more likely to develop MALT lymphoma, and the recommendation for first-line treatment of lymphoma is now treatment of h-pylori.

Research suggests patients with co-morbid h-pylori and chlamydia psittacosis are at higher risk of MALT lymphoma, MALT lymphoma of the stomach, MALT lymphoma of the eye, Hodgkin’s lymphoma, non-Hodgkin lymphoma, Sjögren’s syndrome, Hashimoto’s thyroiditis, Borrelia Burgdorferi infection (Lyme disease), Campylobacter Jejuni, and rheumatoid arthritis.

It is time for medicine to review the evidence that already exists relating to h-pylori, from a variety of specialties; abandon the retreat to associations, develop a coherent theory of the cause, and recognize one pathogen can cause many different diseases in one patient or different patients; and implement that knowledge in medical practice, to the benefit of patients.