What is the main cause of stomach cancer?

What is the main cause of stomach cancer?

What is the main cause of stomach cancer?

Bacteria. A common bacterium called Helicobacter pylori, also called H. pylori, causes stomach inflammation and ulcers. It is also considered one of the main causes of stomach cancer.

What is the most common sign of stomach cancer?

Signs and Symptoms of Stomach Cancer

  • Poor appetite.
  • Weight loss (without trying)
  • Abdominal (belly) pain.
  • Vague discomfort in the abdomen, usually above the navel.
  • Feeling full after eating only a small meal.
  • Heartburn or indigestion.
  • Nausea.
  • Vomiting, with or without blood.

What causes rare stomach cancer?

Helicobacter pylori infection Infection with Helicobacter pylori (H pylori) bacteria seems to be a major cause of stomach cancer, especially cancers in the lower (distal) part of the stomach.

Where Does stomach cancer usually start?

Stomach cancer most commonly begins in the cells that line the inside of the stomach.

How do I check myself for stomach cancer?

If any suspicious areas are found during the upper endoscopy, special tools can be used to remove a sample of tissue for testing. The sample is sent to a lab for analysis. Imaging tests. Imaging tests used to look for stomach cancer include CT scans and a special type of X-ray exam called a barium swallow.

How many years does stomach cancer take to develop?

Stomach cancer is a slow-growing cancer that usually develops over a year or longer. Generally, there are no symptoms in the early stages (asymptomatic). As the disease progresses, a variety of symptoms can develop.

The main cause of stomach cancer is a genetic mutation (change) in the cells of the stomach, which causes the cells to grow rapidly and eventually form a tumor. Risk factors that can increase a person’s chance of getting stomach cancer include: Family history. Smoking.

How do you get stomach cancer?

In addition to a physical examination, the following tests may be used to diagnose stomach cancer:

  1. Biopsy.
  2. Molecular testing of the tumor.
  3. Endoscopy.
  4. Endoscopic ultrasound.
  5. X-ray.
  6. Barium swallow.
  7. Computed tomography (CT or CAT) scan.
  8. Magnetic resonance imaging (MRI).

Can excessive gas be a sign of cancer?

Gas and bloating: Excessive gas and bloating can be a sign of colon cancer.

What can be mistaken for stomach cancer?

Sometimes there are no signs or symptoms of stomach cancer or duodenal or gastric ulcers, and when they do occur, they may include nausea and loss of appetite with no clear cause. Other similar signs and symptoms of stomach cancer and stomach ulcers include weight loss and anemia.

Does stomach cancer affect bowel movements?

Symptoms of advanced stomach cancer may include: Weakness and fatigue. Vomiting blood or having blood in the stool. Unexplained weight loss.

Which is the most common cause of stomach cancer?

The decline in the number of people infected with the Helicobacter pylori ( H pylori) bacteria, which is thought to be a major cause of stomach cancer. While stomach cancer has become less common in the US, it’s still much more common in some other parts of the world, particularly in East Asia.

How to know if you have stomach cancer?

The common causes of stomach cancer are often related to a medical history that includes: 1 H. pylori bacterial infections: A common stomach infection that often causes ulcers. 2 Tumors: Other tumors occurring elsewhere in the gastrointestinal tract. 3 Stomach polyps: Abnormal tissue growth in the stomach lining. 4 Stomach reflex (GERD)

Can a Helicobacter pylori infection cause stomach cancer?

Helicobacter pylori infection is an essential risk factor in 65–80% of gastric cancers, but only 2% of people with Helicobacter infections develop stomach cancer. The mechanism by which H. pylori induces stomach cancer potentially involves chronic inflammation, or the action of H. pylori virulence factors such as CagA.

What foods are associated with lower risk of stomach cancer?

Fresh fruit and vegetable intake, citrus fruit intake, and antioxidant intake are associated with a lower risk of stomach cancer. A Mediterranean diet is associated with lower rates of stomach cancer, as is regular aspirin use.

What are the risk factors for stomach cancer?

A genetic predisposition may cause stomach cancer in some individuals. Genetic factors, environmental toxins and dietary choices are among the known causes of stomach cancer. Chronic gastritis is a risk factor associated with stomach cancer.

How serious is stomach cancer?

A cancerous tumor in the abdomen can be a serious and life-threatening problem — in fact, stomach cancer is one of the deadliest forms of cancer. This is mostly because noticeable symptoms do not occur until the disease is quite advanced.

What is the first sign of stomach cancer?

A feeling of fullness or tightness in the abdomen may be a first sign of gastric cancer. Pressure or occasional sharp pains, excessive burping or a feeling of general discomfort may occur. Heartburn and indigestion is common. Eating may increase the pain or discomfort. People with stomach cancer may have trouble swallowing.

What causes esophageal or stomach cancer?

Factors that increase the risk of stomach cancer include: Gastroesophageal reflux disease Obesity A diet high in salty and smoked foods A diet low in fruits and vegetables Family history of stomach cancer Infection with Helicobacter pylori Long-term stomach inflammation (gastritis) Smoking Stomach polyps