The early manifestations of pancreatic occupancy, without any other symptoms, may include upper abdominal discomfort, such as abdominal distension or indigestion with acid reflux, heartburn, belching, etc. However, this type of manifestation is not a unique clinical manifestation. In case of obvious pancreatic occupancy, the symptoms of wasting may be manifested, which may also be accompanied by bile duct compression and obstruction of the common bile duct, such as yellow sclera, yellow skin staining, clay white stool, and strong tea-like changes in urine, which are typical manifestations of pancreatic occupancy. At the same time, blood tests can be completed, which can show an increase in routine white blood cells and tumor marker CA19-9, as well as abnormalities in albumin and liver function. The CT or ultrasound examination of this pancreatic occupancy will also indicate clinical symptoms of tumor manifestation.