India, May 15 -- Pancreatic cancer is often called one of the most silent and aggressive cancers, mainly because its early signs are so easy to miss or mistake for something minor like digestion issues or fatigue. Many people don't realise how quickly it can progress without obvious warning symptoms.

Dr Saurabh Sethi, Harvard and Stanford-trained gastroenterologist and hepatologist, shares in his May 14 Instagram post a startling reality about pancreatic cancer that many people are unaware of. (Also read: Are you ignoring early heart warning signs? Cardiologist shares what to know before turning 50 )

Here's what he highlights:

"By the time most people feel something, the cancer has already been growing silently for years," says Dr. Set...