Pancreatic cancer back pain after surgery may be caused by surgery, pancreas is a retroperitoneal organ, there are many nerves in the back of pancreas, and the patient’s surgery will affect the nerves, so there may be back pain, and it is necessary to review the relevant indexes, such as blood routine, coagulation routine, abdominal CT to find out if the patient has any abdominal fluid or pancreatic fistula, biliary fistula, etc. The patient should further improve the examination, and also need to review the tumor indexes, such as lymph node metastasis and recurrence that cause the patient to have back pain. It may also be caused by tumor recurrence, especially local recurrence after pancreatic surgery, such as lymph nodes have metastasis, there is a recurrence of back pain caused by the patient, to further improve the examination, you need to review the tumor indicators, and at the same time to review the upper abdominal enhancement CT or PET-CT to decide.