Stomach cancer is an abnormal growth of cells that begins in the stomach. The stomach is a muscular sac located in the upper middle of your abdomen, just below your ribs. Your stomach receives and holds the food you eat and then helps to break down and digest it.

Stomach cancer, also known as gastric cancer, can affect any part of the stomach. In most of the world, stomach cancers form in the main part of the stomach (stomach body).

Symptoms

Signs and symptoms of stomach cancer may include:

• Difficulty swallowing
• Feeling bloated after eating
• Feeling full after eating small amounts of food
• Heartburn
• Indigestion
• Nausea
• Stomach pain
• Unintentional weight loss
• Vomiting

When to see a doctor

If you have signs and symptoms that worry you, make an appointment with your doctor. Your doctor will likely investigate more-common causes of these signs and symptoms first.

Prevention

To reduce the risk of stomach cancer, you can:

• Maintain a healthy weight. If you’re overweight or obese, talk to your doctor about strategies to help you lose weight. Aim for a slow and steady weight loss of 1 or 2 pounds a week.
• Choose a diet full of fruits and vegetables. Try to incorporate more fruits and vegetables into your diet each day. Choose a wide variety of colorful fruits and vegetables.
• Reduce the amount of salty and smoked foods you eat. Protect your stomach by limiting these foods.
• Stop smoking. If you smoke, quit. If you don’t smoke, don’t start. Smoking increases your risk of stomach cancer, as well as many other types of cancer. Quitting smoking can be very difficult, so ask your doctor for help.
• Ask your doctor about your risk of stomach cancer. Talk with your doctor if you have an increased risk of stomach cancer. People with a strong family history of stomach cancer might consider tests, such as endoscopy, to look for signs of stomach cancer.

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