Stomach Cancer Overview: Symptoms and Treatments
Learn about stomach cancer (gastric cancer), including its common symptoms like indigestion and weight loss, as well as various treatment options such as surgery, chemotherapy, and radiation.
Written by Dr. Rohinipriyanka Pondugula
Reviewed by Dr. Shaik Abdul Kalam MD (Physician)
Last updated on 29th Aug, 2025
Stomach cancer, also known as gastric cancer, is a serious condition that affects thousands of people every year. While it can be a frightening diagnosis, early detection and proper treatment can significantly improve outcomes. This article will help you understand the basics of stomach cancer, its symptoms, causes, and available treatments in simple, easy-to-understand language.
What Is Stomach Cancer?
Stomach cancer occurs when abnormal cells grow uncontrollably in the lining of the stomach. Over time, these cells can form a tumor and spread to other parts of the body if not treated early. While it is less common than some other cancers, it can be life threatening if not diagnosed and managed properly.
Common Symptoms of Stomach Cancer
Stomach cancer symptoms can be vague in the early stages, which makes it challenging to detect. However, being aware of the following signs can help in seeking timely medical advice:
- Persistent Indigestion or Heartburn – Frequent discomfort after eating.
- Loss of Appetite or Feeling Full Quickly – Even after small meals.
- Unexplained Weight Loss – Losing weight without trying.
- Stomach Pain or Discomfort – Especially in the upper abdomen.
- Nausea and vomiting – Sometimes with blood.
- Difficulty Swallowing – Feeling like food gets stuck.
- Black Stools or Blood in Vomit – Signs of internal bleeding.
- If you experience any of these symptoms for more than a few weeks, it’s important to consult a doctor.
Consult an Oncologist for personalized consultation
What Causes Stomach Cancer?
While the exact cause is not always clear, certain factors increase the risk:
- Helicobacter pylori (H. pylori) Infection – A common stomach bacteria that can lead to ulcers and cancer.
- Chronic Gastritis – Long-term inflammation of the stomach lining.
- Smoking and Excessive Alcohol Use – Both increase cancer risk.
- Diet High in Smoked, Pickled, or Salty Foods – Processed meats and preserved foods may contribute.
- Family History – Having a close relative with stomach cancer raises risk.
- Age and Gender – More common in people over 50 and slightly more in men.
How Is Stomach Cancer Diagnosed?
If your doctor suspects stomach cancer, they may recommend:
- Endoscopy – A thin tube with a camera examines the stomach.
- Biopsy – A small tissue sample is taken and tested for cancer.
- Imaging Tests – CT scans or X-rays to check tumor spread.
- Blood Tests – To detect anemia or other abnormalities.
- Early diagnosis is crucial for better treatment outcomes.
Treatment Options for Stomach Cancer
Treatment depends on the cancer stage, location, and overall health. Common options include:
1. Surgery – Removing part or all of the stomach (gastrectomy).
2. Chemotherapy – Drugs to kill cancer cells, often used before or after surgery.
3. Radiation Therapy – High energy rays to target cancer cells.
4. Targeted Therapy & Immunotherapy – Newer treatments that help the immune system fight cancer.
Your doctor will create a personalized plan based on your condition.
Lifestyle and Dietary Tips for Prevention & Management
While not all cases can be prevented, these steps may lower risk or help during treatment:
- Eat a Balanced Diet – More fruits, vegetables, and whole grains; less processed foods.
- Limit Smoked/Salty Foods – Opt for fresh, home cooked meals.
- Quit Smoking & Reduce Alcohol – Both are major risk factors.
- Treat H. pylori Infection – Antibiotics can eliminate this bacteria.
- Maintain a Healthy Weight – Obesity increases cancer risk.
If you’ve been diagnosed, small, frequent meals and nutritional supplements may help manage side effects.
When to See a Doctor?
If you have persistent stomach discomfort, unexplained weight loss, or any concerning symptoms, don’t ignore them. Early detection saves lives.
Need expert advice?
You can book a consultation with a specialist or schedule a test through Apollo 24|7 for timely diagnosis and care.
Final Thoughts
Stomach cancer is a serious condition, but awareness and early action make a big difference. Knowing the symptoms, risk factors, and treatment options empowers you to take control of your health. If you or a loved one has concerns, reach out to a healthcare provider—your wellbeing is worth it.
Stay informed, stay healthy!
Consult an Oncologist for personalized consultation
Consult an Oncologist for personalized consultation
Dr Sunita Samleti
Oncologist
18 Years • M.D. (Pathology)- TN Medical College, Mumbai University, Mumbai, Mar 2005 M.B.B.S. Grant Medical College, Mumbai University, Mumbai, Oct 1999
Chinagadila
Apollo Hospitals Health City Unit, Chinagadila
Dr Gowshikk Rajkumar
Oncologist
10 Years • MBBS, DMRT, DNB in Radiation oncology
Bengaluru
Apollo Clinic, JP nagar, Bengaluru
Dr.sanchayan Mandal
Oncologist
17 Years • MBBS, DrNB( MEDICAL ONCOLOGY), DNB (RADIOTHERAPY),ECMO. PDCR. ASCO
Kolkata
Dr. Sanchayan Mandal Oncology Clinic, Kolkata
Dr. Sanchayan Mandal
Oncologist
17 Years • MBBS, DNB Raditherapy, DrNB Medical Oncology
East Midnapore
VIVEKANANDA SEBA SADAN, East Midnapore
Dr. Gopal Kumar
Head, Neck and Thyroid Cancer Surgeon
15 Years • MBBS, MS , FARHNS ( Seoul, South Korea ), FGOLF ( MSKCC, New York )
Delhi
Apollo Hospitals Indraprastha, Delhi
(25+ Patients)
Consult an Oncologist for personalized consultation
Dr Sunita Samleti
Oncologist
18 Years • M.D. (Pathology)- TN Medical College, Mumbai University, Mumbai, Mar 2005 M.B.B.S. Grant Medical College, Mumbai University, Mumbai, Oct 1999
Chinagadila
Apollo Hospitals Health City Unit, Chinagadila
Dr Gowshikk Rajkumar
Oncologist
10 Years • MBBS, DMRT, DNB in Radiation oncology
Bengaluru
Apollo Clinic, JP nagar, Bengaluru
Dr.sanchayan Mandal
Oncologist
17 Years • MBBS, DrNB( MEDICAL ONCOLOGY), DNB (RADIOTHERAPY),ECMO. PDCR. ASCO
Kolkata
Dr. Sanchayan Mandal Oncology Clinic, Kolkata
Dr. Sanchayan Mandal
Oncologist
17 Years • MBBS, DNB Raditherapy, DrNB Medical Oncology
East Midnapore
VIVEKANANDA SEBA SADAN, East Midnapore
Dr. Gopal Kumar
Head, Neck and Thyroid Cancer Surgeon
15 Years • MBBS, MS , FARHNS ( Seoul, South Korea ), FGOLF ( MSKCC, New York )
Delhi
Apollo Hospitals Indraprastha, Delhi
(25+ Patients)
