If your general practitioner (GP) suspects that you have stomach cancer, they will examine you and refer you for further tests. The main tests for diagnosing stomach cancer are endoscopy and the removal of a tissue sample (biopsy).
If the tests shows that you have stomach cancer, the specialist will work out how far it has spread. This is known as staging.
After a stomach cancer diagnosis, you are likely to see a range of health professionals, who will all play a part in your treatment.
Many people feel understandably shocked and upset when told they have stomach cancer. If you need support, call Cancer Council 13 11 20.
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Video: Cancer and common diagnostic tests
Watch this short video to learn about what cancer is, and some common diagnostic tests.