Human mortality is increased by cancer. According to the World Health Organization (WHO), cancer has killed 10 million people in 2020. Lung cancer, liver cancer, colorectal cancer, and other malignancies with a high fatality rate are frequently discussed in the media. Still, there is another cancer that people overlook: esophageal cancer, the horrible invisible killer.
According to predictions, 604,100 persons have been diagnosed with esophageal cancer worldwide in 2020. In the early stages of esophageal cancer, there are usually no noticeable symptoms, making it difficult for individuals to discover its presence. In advanced stages, the tumour will spread across the duct, making it difficult for the patient to swallow food.
Painful swallowing, regurgitation of food, foul-smelling breath, a burning sensation in the centre of the chest, and pain behind the breastbone or above the belly are all possible signs of esophageal cancer. Patients who wait until symptoms appear before seeking medical help are more likely to be in the advanced stages of cancer, resulting in decreased survival rates.
The American Cancer Society (ACS) estimates that if esophageal cancer is detected and treated before it spreads, the 5-year survival rate can be as high as 40%. The 5-year survival rate reduces to 26% when cancer has spread to surrounding lymph nodes or tissues. The 5-year survival rate for cancer that has spread to other distant organs or lymph nodes is only 5%.
In recent years, the global cancer incidence rate has shown that esophageal cancer is among the top ten cancers. Eating habits have been identified as a significant carcinogenic risk for esophageal cancer in epidemiological research. Drinkers are 2 to 4 times more likely than the overall population to develop esophageal cancer. Furthermore, smoking, eating spicy foods, and drinking excessively hot beverages may all raise the risk of esophageal cancer.
The World Health Organization's International Agency for Research on Cancer (IARC) has designated hot liquids over 65 degrees Celsius as a hazard for esophageal cancer. Experts advise people to prevent injuring their throat or oesophagus by waiting before swallowing soups or liquids if their tongues become too hot.
What else could lead to esophageal cancer? Alcohol intake, smoking, HPV infection, gastroesophageal reflux, and achalasia, according to the World Cancer Research Fund (WCRF), may all raise the risk of esophageal cancer. Being overweight or obese is also linked to an increased risk of esophageal cancer.
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