Persistent acidity and weight loss could be early signs of GI cancer

Many people dismiss persistent digestive symptoms as acidity, stress, or minor stomach problems. Experts warn that these seemingly harmless signs could sometimes point to gastrointestinal cancer, a disease that is often diagnosed too late.

In Short

• GI cancers often develop silently, delaying diagnosis until treatment becomes harder
• Endoscopy helps doctors spot subtle cancerous and precancerous changes earlier
• High-risk groups include tobacco users, heavy drinkers and reflux patients

A burning sensation in the chest. Difficulty swallowing food. Persistent stomach discomfort. Unexplained weight loss. These are symptoms many people experience at some point and often brush aside as temporary health issues. However, doctors warn that when such symptoms persist for weeks or months, they should never be ignored.

Gastrointestinal (GI) cancers, which affect organs of the digestive system, including the oesophagus, stomach, colon, liver, pancreas and bile ducts, are among the leading causes of cancer-related deaths worldwide. In India, the burden of these cancers continues to rise, yet awareness about their early warning signs remains low.

The biggest challenge, experts say, is that these cancers often develop silently. By the time symptoms become severe enough to prompt medical attention, the disease may already be at an advanced stage, making treatment more difficult and reducing the chances of successful recovery.

According to Dr Sudhir Maharshi, MBBS, DM (Gastroenterology), DNB (General Medicine), Gastroenterologist and General Physician, delayed diagnosis remains one of the biggest hurdles in treating gastrointestinal cancers effectively.

"Many patients come to us after living with symptoms for months or even years. They often assume the problem is acidity, stress, or something that will eventually go away. Unfortunately, in some cases, those symptoms are the body's early warning signals," he says.

A GROWING HEALTH CONCERN

Doctors explain that gastrointestinal cancers rarely appear overnight. In many cases, they begin as small abnormalities in the lining of the digestive tract and gradually develop over several years.

Medical science has made significant advances in understanding these cancers. Researchers now know that many gastrointestinal cancers can be detected and treated before they become life-threatening. Yet a large gap remains between what medicine can do and what happens in reality.

One reason is the lack of awareness. Many people are unfamiliar with the symptoms and risk factors associated with GI cancers. Another challenge is limited access to screening and diagnostic facilities in some parts of the country.

Countries such as Japan and South Korea have implemented extensive screening programmes for certain gastrointestinal cancers, helping improve survival rates through early diagnosis. Experts believe greater awareness and timely screening could also save many lives in India.

THE ROLE OF ENDOSCOPY IN EARLY DETECTION

One of the most effective tools for detecting gastrointestinal cancers is endoscopy.

The procedure involves inserting a thin, flexible tube equipped with a camera into the digestive tract, allowing doctors to closely examine the inner lining of organs such as the oesophagus, stomach and colon.

According to Dr Maharshi, modern endoscopy has transformed the way doctors identify cancerous and precancerous changes.

"Today's imaging technologies allow us to detect extremely subtle abnormalities that may have gone unnoticed in the past. When cancers are identified early, treatment can be much simpler, and outcomes are significantly better," he explains.

In some cases, doctors can even remove early-stage cancerous lesions during the endoscopic procedure itself, avoiding major surgery and reducing recovery time.

WHO FACES A HIGHER RISK?

While anyone can develop gastrointestinal cancer, some individuals are at greater risk than others.

These include:

• People who use tobacco in any form
• Heavy alcohol consumers
• Individuals with long-standing acid reflux
• Those with a family history of gastrointestinal cancers
• People with a history of stomach ulcers
• Individuals infected with Helicobacter pylori bacteria

Doctors advise people in these high-risk groups to discuss screening options with their healthcare providers, even if they do not currently have symptoms.

WARNING SIGNS THAT SHOULD NOT BE IGNORED

Experts say certain symptoms deserve medical attention if they persist for more than two to three weeks.

These include:

• Persistent indigestion or acidity that does not improve with medication
• Difficulty or pain while swallowing
• Unexplained weight loss
• Blood in the stool
• Black or tarry stools
• Ongoing abdominal pain or discomfort
• Unexplained anaemia
• Significant changes in bowel habits

While these symptoms do not automatically mean cancer, doctors stress that they should never be ignored.

"The majority of people with these symptoms will not have cancer. However, for those who do, seeking help early can make a tremendous difference," says Dr Maharshi.

PREVENTION STARTS WITH LIFESTYLE CHOICES

Experts estimate that a significant proportion of gastrointestinal cancers are linked to preventable lifestyle factors.

Tobacco use remains one of the strongest risk factors, particularly for cancers of the oesophagus and stomach. Excessive alcohol consumption can also increase the risk of several digestive system cancers.

Diet plays an important role as well. A diet high in processed and preserved foods and low in fruits and vegetables may contribute to increased cancer risk.

Doctors recommend:

• Eating more fruits and vegetables
• Maintaining a healthy weight
• Staying physically active
• Avoiding tobacco products
• Limiting alcohol consumption
• Seeking treatment for chronic digestive problems

Another important preventive measure is testing for Helicobacter pylori, a bacterial infection linked to stomach cancer. The infection is common in India and can often be treated effectively with medication.

THE NEED FOR GREATER AWARENESS

Healthcare experts believe awareness remains the most powerful tool in reducing deaths from gastrointestinal cancers.

Many patients delay seeking help because they assume digestive symptoms are normal or temporary. However, doctors say that symptoms persisting for weeks deserve attention.

Dr Maharshi emphasises that early diagnosis should not be viewed as a matter of luck.

"We have the knowledge, technology and expertise to detect many gastrointestinal cancers at an early stage. What we need is greater awareness and a willingness to seek medical advice when symptoms persist," he says.

The message from experts is clear: listen to your body. Persistent digestive symptoms may be harmless, but they may also signal something more serious. Seeking medical evaluation early could make the difference between a simple treatment and a life-threatening diagnosis.

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