The first symptoms of stomach cancer are similar to those of some common stomach diseases. These include:

  • Heartburn or indigestion that does not go away
  • Lack of appetite
  • Feeling full after eating only small amounts
  • Pain in the upper abdomen
  • Weight loss
  • Vomiting
  • Difficulty swallowing
  • Blood in stool or black-colored stool
  • Tiredness or breathlessness (due to anemia)

These symptoms can be caused by other conditions, but it important to have them looked at.