Stomach Cancer
Also known as: Gastric cancer, Gastric carcinoma
Stomach cancer, also known as gastric cancer, develops from the lining of the stomach and often grows slowly over many years. Early-stage stomach cancer rarely causes symptoms, which is why it is often diagnosed at an advanced stage. Risk factors include H. pylori infection, smoking, a diet high in smoked or salted foods, and family history.
Symptoms
Causes
- Chronic Helicobacter pylori infection
- Genetic mutations affecting stomach cell growth
- Diet high in smoked, pickled, or salted foods
- Smoking and tobacco use
- Chronic gastritis or stomach inflammation
Risk Factors
- H. pylori infection
- Diet low in fruits and vegetables and high in processed meats
- Family history of stomach cancer
- Smoking
- Age over 55 years
- Male sex
Diagnosis
- Upper endoscopy with biopsy
- CT scan for staging and spread assessment
- Endoscopic ultrasound for depth of invasion
- PET scan to detect metastatic disease
- Blood tests including tumor markers
Treatment
- Surgical resection including partial or total gastrectomy
- Chemotherapy often combined with surgery
- Radiation therapy
- Targeted therapy such as trastuzumab for HER2-positive cancers
- Immunotherapy for advanced cases
- Palliative care for symptom management
Prevention
- Treatment of H. pylori infection
- Eating a diet rich in fruits and vegetables
- Reducing consumption of smoked, salted, and pickled foods
- Not smoking
When to See a Doctor
- Persistent unexplained indigestion or stomach discomfort
- Unintentional weight loss with loss of appetite
- Blood in vomit or stool
- Difficulty swallowing that worsens over time
Frequently Asked Questions
Related Conditions
Have questions about Stomach Cancer?
Ask Mother Nature AI for personalized, evidence-based guidance.
Ask about Stomach CancerMedical Disclaimer: This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
Content reviewed against peer-reviewed medical literature and clinical guidelines. Read our editorial standards.