Hidden deep in your abdomen, just below the diaphragm, the pancreas is one of the body’s most important glands. It not only plays a major role in digestion but also helps regulate your blood sugar levels. When it stops working properly, the warning signs can range from subtle discomfort to life-threatening symptoms — and knowing them could make all the difference.
The vital role of the pancreas
According to the Geneva University Hospitals, the pancreas serves two main functions. Its exocrine role involves producing pancreatic juice packed with enzymes such as amylase, lipase, and trypsin, which break down carbohydrates, fats, and proteins. Its endocrine role produces hormones like insulin and glucagon, which regulate blood glucose. Common pancreatic disorders include pancreatitis (acute or chronic inflammation) and pancreatic cancer. The latter is particularly dangerous, with the French National Society of Gastroenterology (SNFGE) noting that it’s often diagnosed too late — in 90% of cases, curative surgery is no longer possible. France records around 14,000 new pancreatic cancer cases each year.
Jaundice: a red flag symptom
One of the most concerning signs of pancreatic cancer is jaundice — a yellowing of the skin and the whites of the eyes, often accompanied by dark urine and pale stools. The ARC Foundation for Cancer Research explains that this happens when a tumor blocks the bile duct, preventing bile from flowing from the liver to the intestines. The bile backs up into the bloodstream, causing the yellow discoloration.
Abdominal pain that shouldn’t be ignored
The MSD Manual reports that 85–90% of pancreatitis cases involve abdominal pain, typically in the epigastric region (upper central abdomen). It often appears after meals (postprandial pain), can radiate to the back, and may ease somewhat when sitting upright or leaning forward. Over time, the pain may become persistent, accompanied by bloating and excess gas.
Greasy diarrhea and poor digestion
When the pancreas is inflamed, it produces fewer digestive enzymes, slowing the breakdown of fats, proteins, and sugars. This leads to malabsorption, producing stools that are bulky, greasy, pale, and sometimes have visible oil droplets — a condition known as steatorrhea. These stools are often foul-smelling and diarrheal in consistency.
Rapid and unexplained weight loss
Because pancreatic dysfunction often causes severe malabsorption, patients may experience sudden, significant weight loss, even if they are eating normally. This is a sign that nutrients aren’t being absorbed properly and should always be investigated.
High blood sugar and diabetes
The pancreas’ endocrine function regulates blood sugar through hormones like insulin (lowers blood sugar) and glucagon (raises blood sugar). When the pancreas is damaged — for example, after chronic or acute pancreatitis — this regulation can fail, leading to hyperglycemia (high blood sugar). This may be discovered during routine blood work or through symptoms such as excessive thirst, frequent urination, and fatigue.
The takeaway
The pancreas works quietly in the background, but when it falters, the consequences can be serious. Jaundice, persistent abdominal pain, greasy stools, rapid weight loss, and unexplained high blood sugar are all signs worth acting on immediately. Early detection is vital — and paying attention to these signals could help protect both your digestion and your long-term health.
