Stomach Cancer: How I Knew I Had Stomach Cancer?


Rare but serious stomach cancer, also known as gastric cancer, involves malignant cell development in the stomach lining. Early detection is essential for treating this malignancy.

Stomach cancer symptoms must be understood for early action. This article stresses detecting and acting on usual symptoms quickly. Early symptom detection allows for early medical intervention, which improves treatment and recovery.

Awareness of stomach cancer symptoms encourages people to seek medical care when needed, even though it’s rare. Regular check-ups and a proactive approach to health, especially for risk factors, improve general health and early identification of stomach cancer.

What Are The Symptoms Of Stomach Cancer?

Symptoms Of Stomach Cancer

Understanding the signs of stomach cancer is essential for immediate diagnosis and efficient treatment. Even though each person’s symptoms may differ, being aware of the typical indicators can help ensure that patients receive better care and faster results.

This review delves into the main signs and symptoms of stomach cancer, offering crucial information for immediate diagnosis and proactive treatment planning.

➡️ Unexpected Weight Loss

Weight loss without explanation may be stomach cancer. Malignant stomach lining cells can alter metabolism and induce weight loss.

This symptom must be identified early for therapy. See a doctor for non-lifestyle weight loss. Malignant stomach cells can affect metabolism and cause weight loss. Doctors use diagnostic testing to determine weight loss causes and treatment plans.

➡️ Chronic abdominal discomfort

Constant stomach pain may suggest malignancy. Chronic discomfort and gnawing can result from stomach lining cancer. Recognition of this symptom is essential for early detection and treatment.

Chronic stomach pain should not be overlooked following conventional treatment. Chronic abdominal pain may suggest stomach cancer. If the pain persists, see a doctor for diagnosis and treatment.

➡️ Bloody Vomiting

Some stomach cancers cause bloody vomiting. This uncomfortable symptom requires medical treatment. No matter the volume or appearance, vomiting blood is a major medical emergency that demands immediate medical attention.

Exploring the Causes of Stomach Cancer

➡️ Helicobacter pylori Infection

Helicobacter pylori bacteria are a major cause of stomach cancer. These spiral-shaped germs invade the stomach lining, starting a chain of events that leads to cancer. Chronic inflammation from their infiltration promotes stomach ulcers.

➡️ Tobacco and Alcohol Use

Stomach cancer risk increases with unhealthy lifestyle choices including smoking and drinking. Tobacco smoke’s toxins directly affect the stomach lining, triggering a chain of unfavorable effects that increase cancer risk. In addition, excessive alcohol use increases the absorption of hazardous compounds, damaging stomach cell integrity.

➡️ Genetic Predisposition

Only a small percentage of stomach cancer cases are inherited. Those with a family history of stomach cancer or CDH1 gene mutations are more susceptible. Genetic counseling and testing help identify high-risk individuals for early intervention and monitoring.

➡️ Pernicious Anemia

Pernicious anemia, a vitamin B12 deficiency, may increase stomach cancer risk. Autoimmune gastritis, which destroys stomach mucosa, is often connected to this deficit. Beyond vitamin B12 deficiency, damaged stomach mucosa increases malignancy risk.

Different Types of Stomach Cancer

➡️ Adenocarcinoma

Adenocarcinoma accounts for 90–95% of stomach cancer cases. This cancerous growth comes from stomach glandular cells. The main subgroups of adenocarcinoma are intestinal and diffuse. Intestinal adenocarcinoma forms a tumor, while diffuse infiltrates the stomach lining, making it harder to diagnose and treat.

➡️ Gastrointestinal Stromal Tumor (GIST)

GIST is a rare stomach cancer that starts in Cajal interstitial cells, which govern cell migration in the digestive tract. GIST usually occurs in the small intestine, however the stomach can also be infected. Targeted therapies like imatinib have been shown to treat GIST. Identifying the illness subtype appropriately is crucial for developing tailored treatment plans.

➡️ Lymphoma

Stomach lymphomas target the lymphatic system and affect many stomach layers. Mucosa-associated lymphoid tissue lymphoma (MALT) is typically linked to H. pylori. Diffuse large B-cell lymphoma can potentially originate in the stomach. Lymphoma frequency decreases.

➡️ Carcinoid Tumours

Stomach neuroendocrine carcinoid tumors are rare. Hormone-producing cells produce slow-growing tumors. Most carcinoid tumors are benign, but malignant ones can spread. Surgery to remove the tumor is usual.

➡️ Squamous Cell Carcinoma

Squamous cell carcinoma can form in the stomach, but it is more common in the esophagus. This cancer is caused by squamous cells on the stomach’s top. Tobacco and alcohol use are often linked to squamous cell cancer.

➡️ Hereditary Diffuse Gastric Cancer (HDGC)

Mutations in the CDH1 gene cause rare, hereditary stomach cancer HDGC. This cancer commonly appears as diffuse adenocarcinoma in younger people. People with HDGC in their families need genetic testing and counseling.

Risk Factors for Stomach Cancer

➡️ Helicobacter Pylori Infection

Helicobacter pylori (H. pylori) infection increases stomach cancer risk. When this bacterium infects the stomach lining chronically, it causes a chain of problems. Persistent H. pylori infection causes stomach lining damage and inflammation, increasing cancer risk. 

➡️ Genetic Factors

Family history increases stomach cancer risk. Certain genetic alterations, such as those connected to hereditary diffuse gastric cancer (HDGC), increase stomach cancer risk.

These genetic changes increase stomach cancer risk, highlighting the role of genetics. Targeted risk assessment and prevention need to understand the relationship between family history, genetic mutations, and stomach cancer risk.

➡️ Previous Stomach Conditions

People with chronic gastritis or stomach polyps are more likely to develop stomach cancer. These pre-existing disorders can cause stomach lining cellular alterations that lead to cancer.

Prevention Strategies for Stomach Cancer

➡️ Helicobacter Pylori Eradication

Since H. pylori infection is strongly linked to stomach cancer, eradicating this bacterium is crucial to prevention. Stomach cancer risk can be reduced by eliminating H. pylori.

Antibiotics and acid-suppressants are usually the main treatments. This combination is a typical and successful H. pylori medication that relieves symptoms and reduces stomach cancer risk.

➡️ Genetic Counselling and Testing

Genetic counseling and testing are recommended for anyone with a family history of stomach cancer. Genetic counseling helps understand familial risk, while genetic testing identifies stomach cancer-related genetic abnormalities, such as those connected to hereditary diffuse gastric cancer.

➡️ Regular Screening and Surveillance

Even though routine screenings for stomach cancer are not as prevalent as tests for other types of cancer, they can be extremely important for those who are at a higher risk of developing the disease.

Endoscopic examinations, such as gastroscopy, can assist in the detection of precancerous lesions or cancer in its early stages, which enables earlier management and improved outcomes.

➡️ Vaccination and Chemoprevention

H. pylori vaccination should be considered in high-incidence groups. Drugs that may prevent stomach cancer in high-risk patients are also being studied. These drugs need more testing to prove their efficacy and safety.


Although stomach cancer is quite a health issue even now, awareness related to the risk factors of stomach cancer and taking prevention means can reduce the prevalence of this disease to a significant extent.

The fight against stomach cancer ranges from infection control to conscious lifestyle choices, wherein the health expert has to be joined by every individual. The future of stomach cancer in the world is sitting at the joining point of scientific advancement and public awareness with proactive healthcare.

Dr. Simon Greenfield is an esteemed gastroenterologist with an extensive background in treating a broad range of gut-related conditions. Based in Hertfordshire, he offers his expertise for conditions including various bowel issues, indigestion types, and pancreas/bile duct problems. Dr. Greenfield is recognized for his approach that combines deep clinical knowledge with a genuine concern for his patients’ wellbeing.

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