Currently, the exact cause of pancreatic cancer, a malignant tumor of the digestive system, is not clear in clinical practice. Clinical evidence has confirmed that the occurrence of pancreatic cancer is related to the following factors:

1. The incidence of pancreatic cancer is increased among people who smoke heavily and drink alcohol for a long period of time.

2. A long-term diet high in fats and low in fiber, leading to obesity, can also result in a high incidence of pancreatic cancer.

3. People who are exposed to chemical carcinogens like benzene over a long period tend to have a higher incidence of pancreatic cancer compared to the normal population.

4. People with newly developed type 2 diabetes but no family history of diabetes should also be cautious of the potential occurrence of pancreatic cancer.

5. Groups of people with a history of chronic familial pancreatitis also have an increased incidence of pancreatic cancer.