Gastric Cancer: Symptoms, Causes, Treatment
سرطان المعدة
Stomach cancer may begin with nonspecific symptoms such as early fullness or persistent indigestion, or be detected after bleeding or weight loss. Diagnosis relies on endoscopy and tissue sampling; type, stage and tumour testing guide treatment.
What is Gastric Cancer?
Adenocarcinoma is the most common type, but other stomach tumours require different plans. Not every ulcer or Helicobacter pylori infection is cancer. Persistent symptoms deserve assessment rather than diagnosis from pain alone.
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Symptoms
Symptoms may include recurring indigestion, early fullness, nausea, appetite or weight loss. Vomiting, black stools or anaemia-related fatigue can occur. These do not prove cancer but warrant review when persistent or worsening.
Causes
Cellular changes may be associated with chronic inflammation, inherited susceptibility and environmental factors. H. pylori is an important risk factor for particular forms, but most infected people do not develop cancer. Risks vary by tumour site and type.
Risk factors
Factors include persistent H. pylori, atrophic gastritis, certain precancerous changes, smoking and family history. Particular hereditary syndromes warrant specialist counselling. Risk factors do not mean cancer is inevitable or already present.
Diagnosis
Upper endoscopy allows inspection and biopsies. Blood tests and imaging help assess spread, while tissue biomarkers may guide medicines. An H. pylori test cannot replace investigation of warning symptoms.
Treatment
Selected early lesions may be removed endoscopically. Other cases need partial or total gastrectomy with appropriate lymph-node management. Chemotherapy or radiation may be added; immune or targeted therapies suit particular tumour findings. Nutritional support matters during treatment and recovery.
Complications
Complications include bleeding, obstruction, poor nutrition and spread. After surgery, food tolerance or nutrient absorption may change, requiring tailored monitoring and replacement. Symptom relief and side-effect management complement tumour-directed treatment.
Prevention
Treating diagnosed H. pylori as advised, stopping smoking and reducing heavily salted or preserved foods can lower risk. Surveillance is not identical for everyone; precancerous changes or inherited susceptibility warrant individualized discussion.
When to see a doctor
Vomiting blood or black stools with dizziness or fainting requires emergency care. Unexplained weight loss, persistent vomiting, swallowing difficulty or anaemia needs timely assessment, even if acid-suppressing treatment temporarily helps.