Don't ignore persistent acidity: It can be an early sign of stomach cancer

November is observed worldwide as Stomach Cancer Awareness Month. Although medical healthcare has made tremendous strides, rising cancer rates remain a major public health challenge. Among various malignancies, stomach cancer—also known as gastric cancer—is particularly complex. However, if identified in its initial stages, it is highly treatable and often completely curable. Unfortunately, because early symptoms are frequently overlooked, most patients seek medical care only when the disease has advanced significantly. With busy lifestyles prompting many to self-medicate with over-the-counter antacids, raising awareness about timely screening and early detection has never been more vital.

Early warning signs you shouldn't ignore
The biggest hurdle in diagnosing stomach cancer early is that its initial symptoms closely mimic common gastric issues or peptic ulcers. When experiencing indigestion, heartburn, or abdominal discomfort, many people turn to quick fixes or temporary antacids. However, discomfort lasting for weeks or months should never be taken lightly. A key warning sign is feeling unusually full after eating only small amounts of food, alongside unexplained, significant weight loss. Other red flags include persistent upper abdominal pain, difficulty swallowing, loss of appetite, chronic fatigue, and frequent vomiting. As the disease progresses, patients may notice blood in their vomit or stool, or experience dark, tarry stools. While these symptoms do not always indicate cancer, their persistence warrants an immediate evaluation by an expert gastroenterologist.

Major risk factors and lifestyle triggers
Several factors contribute to the development of stomach cancer. One of the most significant is a chronic infection caused by the bacterium Helicobacter pylori (H pylori), which typically spreads through contaminated food and water. Left untreated, long-term H pylori infection can cause inflammation in the stomach lining, leading to ulcers and eventually increasing the risk of gastric cancer. Modern dietary habits also play a major role. Consuming high amounts of salty foods, preserved or smoked meats, packaged goods laden with artificial preservatives, and processed bakery items elevates the risk. Conversely, a diet lacking in fresh, fibre-rich fruits and vegetables leaves the digestive system vulnerable. Smoking and excessive alcohol intake further compound the threat. Additionally, individuals with a family history of stomach cancer among parents or siblings face a higher genetic risk and should undergo routine preventative screenings.

Modern diagnostics and keyhole surgery
Advancements in medical science have transformed cancer management. An upper gastrointestinal endoscopy is a quick and virtually painless procedure that allows doctors to detect early structural changes in the stomach wall. During an endoscopy, tissue samples can be retrieved for biopsy to confirm a diagnosis. Advanced imaging tools such as CT scans and PET scans are then used to determine the exact stage and spread of the disease.

Surgical techniques have also advanced dramatically. Rather than relying on traditional open surgeries that require large incisions, modern gastric cancer treatment frequently utilises laparoscopic or keyhole surgery. Performed through minute incisions using tiny cameras and specialised instruments, keyhole procedures allow surgeons to precisely remove cancerous tissue. This results in significantly less pain, reduced blood loss, shorter hospital stays, and a much faster return to daily activities.

Prevention is in your hands
While not all cancers can be prevented entirely, positive lifestyle modifications can drastically reduce your risk. Prioritise a balanced diet packed with fresh fruits, vegetables, and whole foods while minimising processed meats, fast food, and heavily salted items. Avoid tobacco entirely and limit alcohol consumption. If you suffer from recurrent acidity, consult a doctor to test for an H pylori infection; if positive, completing a standard antibiotic course can eliminate the bacteria completely. Regular physical exercise and maintaining a healthy body weight also help bolster the immune system. Today, optimal cancer care involves a multidisciplinary team—including gastroenterologists, medical oncologists, radiation oncologists, and surgical experts—working together to deliver tailored treatments.

Awareness over fear
A cancer diagnosis can feel daunting, but when it comes to stomach cancer, awareness and vigilance are your best safeguards. Paying close attention to subtle changes in your body and seeking timely medical advice can make all the difference. With cutting-edge diagnostics and minimally invasive surgical options readily available, early detection truly saves lives. Use this awareness month to evaluate your lifestyle, prioritise your digestive health, and schedule a consultation if persistent symptoms arise.
(Dr Baiju Senadhipan is a Senior Consultant at the SK Hospital, Thiruvananthapuram).