The most typical clinical manifestations of acute pancreatitis are abdominal pain, nausea and vomiting, fever, jaundice and so on. 1. Abdominal pain: Acute pancreatitis is often characterized by severe epigastric pain that radiates to the back of the shoulders. The location of the abdominal pain depends on the location of the lesion, such as the head of the pancreas for the right epigastric pain, and the tail of the pancreas for the left epigastric pain. 2. Nausea and vomiting: mostly seen at the beginning of the disease, and the abdominal pain is not relieved after vomiting. 3. Fever and jaundice: Fever increases with the degree of disease, biliary pancreatitis is often combined with biliary obstruction, and jaundice will appear. In addition, other symptoms such as vomiting blood may occur in acute pancreatitis. When these symptoms occur, it is recommended to consult a doctor, complete the relevant examinations, and carry out treatment under the guidance of the doctor.