Understanding Gastric Cancer Symptoms
Gain a clear understanding of gastric cancer symptoms, from common early warning signs like indigestion and abdominal pain to advanced indicators. Learn what to look for and when to seek medical attention for timely diagnosis.
Written by Dr. Siri Nallapu
Reviewed by Dr. Rohinipriyanka Pondugula MBBS
Last updated on 7th Aug, 2025
Gastric cancer, also known as stomach cancer, is a serious health condition that affects thousands of people every year. Recognizing its symptoms early can make a significant difference in treatment and recovery. This article aims to help you understand the common signs of gastric cancer, its possible causes, and steps you can take to manage your health better.
What is Gastric Cancer?
Gastric cancer occurs when abnormal cells grow uncontrollably in the stomach lining. Over time, these cells can form tumors and spread to other parts of the body if not detected early. While it is a serious condition, early diagnosis and treatment can improve outcomes significantly.
Common Symptoms of Gastric Cancer
The symptoms of gastric cancer can be subtle at first and may resemble common digestive issues. However, if these symptoms persist or worsen, it’s important to consult a doctor. Key signs to watch for include:
1. Persistent Indigestion or Heartburn
Frequent indigestion, bloating, or a burning sensation in the stomach that doesn’t go away with usual remedies could be a warning sign.
2. Unexplained Weight Loss
Losing weight without trying, especially if accompanied by loss of appetite, may indicate an underlying issue like gastric cancer.
3. Stomach Pain or Discomfort
A dull or sharp pain in the upper abdomen that doesn’t subside should not be ignored.
4. Feeling Full Quickly While Eating
If you feel full after eating very little (early satiety), it could be due to a tumor affecting digestion.
5. Nausea and Vomiting
Persistent nausea, vomiting (sometimes with blood), or difficulty swallowing food may signal a problem.
6. Blood in Stool or Black, Tarry Stools
This could indicate bleeding in the stomach, which requires immediate medical attention.
7. Fatigue and Weakness
Low energy levels due to anemia (caused by internal bleeding) can also be a symptom.
If you experience any of these symptoms for more than a few weeks, it’s best to see a doctor for further evaluation.
What Causes Gastric Cancer?
While the exact cause is not always clear, certain factors increase the risk:
Helicobacter pylori (H. pylori) infection – A common bacterial infection linked to stomach ulcers and cancer.
Chronic Gastritis – Long-term inflammation of the stomach lining.
Smoking and Alcohol Use – Both can damage stomach cells over time.
Diet High in Smoked, Pickled, or Salty Foods – These may increase cancer risk.
Family History – Having a close relative with gastric cancer raises your risk.
Age and Gender – More common in people over 50 and slightly more in men.
Consult Top Oncologist For personalised Tips
How Can You Reduce Your Risk?
While not all cases can be prevented, certain lifestyle changes can help lower your risk:
Eat a Healthy Diet – Include more fruits, vegetables, and whole grains while reducing processed and salty foods.
Quit Smoking and Limit Alcohol – Both are major risk factors.
Treat H. pylori Infections – If diagnosed, antibiotics can help eliminate the bacteria.
Exercise Regularly – Staying active supports overall digestive health.
Get Regular Checkups – If you have a family history or persistent symptoms, early screening is crucial.
When to See a Doctor?
If you notice any persistent or worsening symptoms, don’t delay seeking medical advice. Early detection is key to better treatment outcomes.
Apollo24|7 makes it easy to consult with specialists or schedule tests from the comfort of your home. You can book an appointment online and get expert guidance on managing your symptoms.
Final Thoughts
Gastric cancer can be a frightening diagnosis, but being aware of the symptoms and risk factors empowers you to take action. If you or a loved one experience any concerning signs, consult a healthcare professional promptly. With timely care and healthy lifestyle choices, you can take control of your digestive health.
Stay informed, stay proactive, and remember—your health matters!
Consult Top Oncologist
Consult Top Oncologist For personalised Tips
Dr. Rupam Manna
Radiation Specialist Oncologist
4 Years • MBBS MD(RADIO THERAPY)
Barasat
Diab-Eat-Ease, Barasat
Dr. Harsh J Shah
Surgical Oncologist
15 Years • MS, MCh (GI), DrNB (GI)
Ahmedabad
Apollo Hospitals Gandhinagar, Ahmedabad
Dr Ankit Jain
Medical Oncologist
20 Years • MBBS, (MAMC Delhi), MRCP Oncology (London), MRCP Medicine (London), MSC Oncology(UK) CCT(UK)
Delhi
Apollo Hospitals Indraprastha, Delhi
(25+ Patients)
Dr. Amit Choraria
Surgical Oncologist
18 Years • MBBS, MS (Surgery) Fellow, Surgical Oncology, Tata Medical Center (FSO) Fellow, European Board of Surgery (Surgical Oncology) (FEBS) Fellow, Minimal Access Surgery (FMAS) Fellow, Indian Association of Gastrointestinal Endosurgeons (FIAGES) UICC Fellow, Royal Marsden NHS, London, UK Visiting Scholar, Plastic Reconstructive Surgery, CGMH, Taiwan Fellow, Robotic Surgical Oncology, Vattikuti Foundation, USA
Kolkata
Apollo Multispeciality Hospitals , Kolkata, Kolkata
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
Consult Top Oncologist
Dr. Rupam Manna
Radiation Specialist Oncologist
4 Years • MBBS MD(RADIO THERAPY)
Barasat
Diab-Eat-Ease, Barasat
Dr. Harsh J Shah
Surgical Oncologist
15 Years • MS, MCh (GI), DrNB (GI)
Ahmedabad
Apollo Hospitals Gandhinagar, Ahmedabad
Dr Ankit Jain
Medical Oncologist
20 Years • MBBS, (MAMC Delhi), MRCP Oncology (London), MRCP Medicine (London), MSC Oncology(UK) CCT(UK)
Delhi
Apollo Hospitals Indraprastha, Delhi
(25+ Patients)
Dr. Amit Choraria
Surgical Oncologist
18 Years • MBBS, MS (Surgery) Fellow, Surgical Oncology, Tata Medical Center (FSO) Fellow, European Board of Surgery (Surgical Oncology) (FEBS) Fellow, Minimal Access Surgery (FMAS) Fellow, Indian Association of Gastrointestinal Endosurgeons (FIAGES) UICC Fellow, Royal Marsden NHS, London, UK Visiting Scholar, Plastic Reconstructive Surgery, CGMH, Taiwan Fellow, Robotic Surgical Oncology, Vattikuti Foundation, USA
Kolkata
Apollo Multispeciality Hospitals , Kolkata, Kolkata
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
