Stomach cancer

Also called Gastric cancer

Stomach cancer is cancer found anywhere in the stomach. It mostly affects people over 55 and is more common in men. Things that raise the risk include infection with Helicobacter pylori bacteria, smoking, a diet high in salty and processed foods, long-term stomach inflammation and a family history.

Last updated Nov 9, 2026

What it is

Treatment depends on the stage and may include surgery to remove part or all of the stomach, chemotherapy, radiotherapy and targeted medicines.

Support from a dietitian is important, especially after stomach surgery.

Common signs

  • Indigestion or heartburn that does not go away
  • Feeling full quickly
  • Losing weight without trying
  • Feeling or being sick
  • Difficulty swallowing
  • Tiredness from anaemia

How it is usually diagnosed

  • A camera test (gastroscopy) with a biopsy
  • CT or PET scans
  • Sometimes a laparoscopy

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Gastroscopy and biopsy reports
  • Scan reports
  • Multidisciplinary team (MDT) letters
  • Treatment plans
  • Dietitian letters

Questions to ask your doctor

  • What stage is the cancer?
  • What treatment do you recommend?
  • How will treatment affect eating?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Vomiting blood, black or tarry poo, or being unable to keep food down: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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