What are the main causes of gastric cancer?

What are the main causes of gastric cancer? I believe many people have this question. Only when we understand its causes can we carry out more targeted treatment. Let us follow the experts to understand the causes of gastric cancer .

1. Dietary factors: Diet is closely related to the onset of gastric cancer, which can be said to be an undisputed cause of gastric cancer. In recent years, the incidence of gastric cancer in developed countries in Europe and the United States has been declining, which is mainly related to dietary factors.

2. Helicobacter pylori (HP) infection: Infection with Helicobacter pylori in the stomach is one of the important causes of gastric cancer. The World Health Organization has classified Helicobacter pylori as a primary carcinogen for human gastric cancer. The difference in the strains of HP bacteria can lead to differences in the occurrence of gastric cancer. In 1994, Forman of the United Kingdom believed that 35% of gastric cancer cases in developed countries and 85% of gastric cancer cases in developing countries were related to HP infection. Some scholars believe that HP infection may be a synergistic carcinogenic factor for gastric cancer.

3. Genetic factors: Most retrospective survey materials believe that genetic factors play a more positive role in the etiology of gastric cancer, and there is a clear tendency for familial clustering. It is generally believed that the incidence of gastric cancer in relatives of gastric cancer patients is 4 times higher than that in the control group.

4. Chronic gastritis: Gastric cancer is closely related to chronic gastritis, especially atrophic gastritis. The incidence of this type of gastric cancer is related to the severity of atrophic gastritis and the length of medical history. Due to atrophic gastritis, the function and structure of the mucosa are abnormal, the free acid in gastric juice decreases, and the bacteria in gastric juice increase, which increases the synthesis of nitroso compounds. Nitroso compounds have been proven to cause gastric cancer. This is also the cause of gastric cancer.

The above is an introduction to the causes of gastric cancer. I hope the above content can help you. I also hope that patients with gastric cancer can actively seek treatment, maintain a good attitude, and recover soon!

For more information, please visit the gastric cancer special topic at http://www..com.cn/zhongliu/wa/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.