Drainage of 10 ml per day after pancreatic surgery is due to drainage of abnormal fluid and prevention of infection. After pancreatic surgery, due to the irritation of the surgery, the localization will be manifested by the presence of oozing fluid. In addition, due to surgical injury, there may also be mild bleeding, etc. These fluids need to be drained out in a timely manner, and therefore drains are placed. Drainage of fluids that have no physiological effect can effectively prevent infection of the wound, etc. The drain can usually be removed after two weeks. After pancreatic surgery, it is important to go to the hospital for regular checkups, keep the wounds clean after surgery, and change the medication regularly to prevent poor wound healing. If there is any discomfort after the operation, you need to consult a doctor in time and take appropriate treatment under the doctor’s guidance.