3 Common Symptoms of Stomach Cancer

Medically Reviewed by Carolin Schneider, MD

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Stomach cancer begins when abnormal cells begin to grow in the cells of tissues lining or surrounding your stomach. Your stomach is located on the left side of your body in your upper abdominal cavity. While stomach cancer can affect any part of the organ, in the United States, the area most commonly involved in stomach cancer is known as the gastroesophageal junction. This is the portion of your stomach that connects to your esophagus — where food enters after you’ve chewed and swallowed it.

The early signs of stomach cancer can be nonspecific, meaning they may resemble the symptoms of other conditions. However, several of the most common symptoms of stomach cancer you should watch out for include the following.