Common symptoms of stomach cancer include persistent abdominal pain, indigestion, heartburn, nausea, loss of appetite, unintentional weight loss, vomiting, difficulty swallowing, and blood in the stool.

Diagnosis typically involves a combination of medical history review, physical examination, imaging tests (such as CT scan or endoscopy), and biopsy to examine a sample of the affected tissue. Additional tests, such as blood tests and molecular testing, may also be performed.

Treatment options for stomach cancer depend on various factors, including the stage and extent of the cancer. They may include surgery to remove the tumor, chemotherapy, radiation therapy, targeted therapies, and immunotherapy. Treatment plans are personalized based on individual circumstances.

While it may not be possible to prevent all cases of stomach cancer, certain measures can lower the risk. These include maintaining a healthy diet rich in fruits and vegetables, avoiding excessive salt and processed foods, quitting smoking, reducing alcohol consumption, and seeking prompt treatment for Helicobacter pylori infection.