When are digestive problems a symptom of pancreatic cancer?

Digestive difficulties including indigestion, nausea, weight loss, a poor appetite, and diarrhea, can arise as a result of pressure from a pancreatic cyst or tumor on the stomach or the small intestine that causes a block in the digestive tract. When a tumor grows, it can wrap around the far end of the stomach, causing a partial block. This can cause nausea, vomiting, and pain which may worsen after eating.