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12 min read•Sep 25, 2026

Stomach (Gastric) Cancer: Risk Factors, Endoscopic Resection, Gastrectomy & Diet

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Riddhima Saha | Researcher

Carcino Research & Clinical Advisory

Stomach cancer (gastric cancer) develops in stomach mucosa. 4th leading cause of cancer deaths global (1.1M cases 2020, 66% males, age >45).

Risk Factors & Symptoms

Risk factors: Helicobacter pylori infection, smoking, obesity, alcohol, pernicious anemia, salty/smoked/pickled food diet.

Symptoms: Poor appetite, weight loss, belly pain above navel, early satiety, heartburn/indigestion, nausea/vomiting with/without blood, dark stool, anemia, jaundice.

Staging & Gastrectomy Surgery

Staging: Stage 1A/1B (mucosa/submucosa) to Stage 4 (distant metastasis to liver/lungs/peritoneum).

Diagnostics: Endoscopy (EGD), Biopsy, Blood tests, FOBT stool test.

Treatment: Endoscopic Mucosal Resection (EMR for early stage), Partial or Total Gastrectomy surgery, Endoluminal stent placement, Gastrojejunostomy, Radiation, Chemotherapy.

Diet: Small digestible meals, avocados, nut butter, olive oil, broths; avoid salty/smoked/spicy/fatty foods, red meat, added sugar, alcohol.

Frequently Asked Questions (FAQs)

Citations & Medical References