The symptoms of exocrine pancreatic cancers and pancreatic neuroendocrine tumors (NETs) are often different, so they are described separately. Having one or more of the symptoms below does not mean you have pancreatic cancer. In fact, many of these symptoms are more likely to be caused by other conditions. Still, if you have any of these symptoms, it’s important to have them checked by a doctor so that the cause can be found and treated, if needed. Early pancreatic cancers often do not cause any signs or symptoms. By the time they do cause symptoms, they have often already spread outside the pancreas.