Treatments for stage 0 stomach cancer

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The following are treatment options for stage 0 stomach cancer. Your healthcare team will suggest treatments based on your needs and work with you to develop a treatment plan.


Surgery is a standard treatment for stage 0 stomach cancer.

A gastrectomy removes all or part of the stomach. Some lymph nodes around the stomach are also removed (called a lymph node dissection). This is the most common type of surgery done to treat stage 0 cancer.

An endoscopic resection (ER) uses an endoscope and surgical tools to remove a tumour from the stomach. It is a very specialized surgery that may be used to treat small stage 0 tumours (2 cm or smaller) that are at a low risk of spreading to nearby lymph nodes.

A limited surgical resection removes the section of the stomach wall that contains the abnormal area along with some healthy tissue around it (called the surgical margin). This may be used to treat small tumours without any ulceration (no open wound).

Clinical trials

Talk to your doctor about clinical trials open to people with stomach cancer in Canada. Clinical trials look at new ways to prevent, find and treat cancer. Find out more about clinical trials.

Expert review and references

Medical disclaimer

The information that the Canadian Cancer Society provides does not replace your relationship with your doctor. The information is for your general use, so be sure to talk to a qualified healthcare professional before making medical decisions or if you have questions about your health.

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