The stomach has a battery of stem cells, which constantly replace lost cells. If these replacement manufacturers are overworked, they may begin to make mistakes. Cancer cells are the result. Statistically, this does not look too serious: around 1 percent of H. pylori carriers develop stomach cancer. But if you bear in mind that half of humanity harbor these bacteria in their stomach, 1 percent turns out to be a pretty big number. The probability of developing stomach cancer without the presence of H. pylori is about forty times less than with it.
