Stomach cancer, also known as gastric cancer, occurs when malignant cells develop in the lining of the stomach. It often grows slowly over many years and may not cause noticeable symptoms in the early stages. As the cancer progresses, symptoms like indigestion, stomach pain, nausea, loss of appetite, and unexplained weight loss may appear. Risk factors include infection with Helicobacter pylori bacteria, smoking, a diet high in salty or smoked foods, and a family history of stomach cancer. Diagnosis typically involves endoscopy and biopsy, while treatment depends on the stage of cancer and may include surgery, chemotherapy, radiation therapy, or targeted therapy. Early detection is crucial for better outcomes.

• Stomach cancer originates from the inner lining of the stomach.
• Early stages often have no or mild symptoms.
• Common symptoms: indigestion, stomach pain, nausea, loss of appetite, weight loss.
• Risk factors: Helicobacter pylori infection, smoking, poor diet, family history.
• Diagnosed by endoscopy and tissue biopsy.
• Treatment options include surgery, chemotherapy, radiation, and targeted therapy.
• Early diagnosis improves chances of successful treatment.