Understanding Lab Tests for Stomach Cancer (Gastric Cancer)
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Stomach cancer, also known as gastric cancer, is a serious condition where malignant cells form in the lining of the stomach. While there is no single blood test that can diagnose stomach cancer itself, lab testing plays an important role in identifying risk factors and supporting the overall assessment of this condition.
Recommended Test
H. Pylori Antigen Stool
This test detects Helicobacter pylori bacteria, which causes chronic stomach infection. Long-term H. pylori infection is a significant risk factor for developing certain types of stomach cancer. Early detection and treatment of this bacterial infection can help reduce the risk of gastric cancer development, making this test an important preventive measure.
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The Role of Lab Testing in Stomach Cancer Assessment
Although stomach cancer diagnosis typically requires imaging studies and tissue biopsies, blood tests are fundamental for detecting conditions that increase the risk of developing gastric cancer. Identifying and treating these risk factors, such as chronic bacterial infections, is crucial for prevention and early intervention strategies.
Understanding the Connection
Chronic H. pylori infection can cause ongoing inflammation in the stomach lining, which over time may lead to changes in the stomach tissue that can progress to cancer. While not everyone with H. pylori develops stomach cancer, treating the infection when detected can significantly reduce this risk.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment. If you have symptoms of stomach cancer or other risk factors, your doctor may recommend additional testing including imaging studies and endoscopic procedures.
