What causes stomach cancer?
-Anything that increases your chance of getting a disease is called a risk factor.
-Having a risk factor does not mean that you will get cancer; not having risk factors doesn’t mean that you will not get cancer.
Stomach cancer risk factors
.Risk factors for stomach cancer include the following:
-Helicobacter pylori infection
-Long-term inflammation of the -stomach
-Smoking
-Family history
-Poor diet, lack of physical activity, or -obesity
Helicobacter pylori infection
- H. pylori is a bacterium that commonly infects the inner lining (the mucosa) of the stomach.
-Infection with H. pylori can cause stomach inflammation and peptic ulcers.
-It also increases the risk of stomach cancer, but only a small number of infected people develop stomach cancer.
Long-term inflammation of the stomach
-People who have conditions associated with long-term stomach inflammation (such as the blood disease pernicious anemia) are at increased risk of stomach cancer.
-Also, people who have had part of their stomach removed may have long-term stomach inflammation and increased risk of stomach cancer many years after their surgery.
-Smokers are more likely than nonsmokers to develop stomach cancer.
-Heavy smokers are most at risk.
-Close relatives (parents, brothers, sisters, or children) of a person with a history of stomach cancer are somewhat more likely to develop the disease themselves.
- If many close relatives have a history of stomach cancer, the risk is even greater.
-Studies suggest that people who eat a diet high in foods that are smoked, salted, or pickled have an increased risk for stomach cancer.
-On the other hand, people who eat a diet high in fresh fruits and vegetables may have a lower risk of this disease.
-A lack of physical activity may increase the risk of stomach cancer.
-Also, people who are obese may have an increased risk of cancer developing in the upper part of the stomach.
Lack of physical activity or obesity
-There is a sharp increase in stomach cancer after the age of 50.
-Most people are diagnosed with stomach cancer when they are between their late 60s and 80s.
-Blood type groups refer to certain substances that are normally present on the surface of red blood cells and some other types of cells.
-These groups are important in matching blood for transfusions.
-For unknown reasons, people with type A blood have a higher risk of getting stomach cancer.
-Workers in the coal, metal, and rubber industries seem to have a higher risk of getting stomach cancer.
- A person who smokes cigarettes may be at increased risk of developing polyps and colorectal cancer.
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