Stomach cancer, also known as gastric cancer, is a buildup of abnormal cells that form a mass in part of the stomach.
Here are some key points about stomach cancer. More detail and supporting information is in the main article.
Stomach cancer is the third leading cause of cancer-related deaths.
The most common type of stomach cancer is adenocarcinoma of the stomach.
Early symptoms include heartburn, persistent indigestion, and difficulty swallowing.

Symptoms

There are several symptoms associated with stomach cancer. However, as they also exist in many other less serious conditions, gastric cancer may be difficult to recognize at first.
It is for this reason that so many people with stomach cancer are not diagnosed until the disease is already advanced.

Early symptoms of stomach cancer may include:

• a sensation of being very full during meals
• swallowing difficulties, known as dysphagia
• feeling bloated after meals
• frequent burping
• heartburn
• indigestion that does not go away
• stomachache, or pain in the breastbone
• trapped wind
• vomiting, which may contain blood