Pancreatic cancer is one of the common tumor diseases, but most of the patients are found to be sick only in the late stage of the disease, so what are the common triggers of pancreatic cancer? What are the common causes of pancreatic cancer and what are the symptoms of pancreatic cancer in the late stage? Common Causes of Pancreatic Cancer 1. Hereditary Factors The incidence of pancreatic cancer in people with family history is 3-13 times of those without family history. It is reported that if one person in the family develops pancreatic cancer, the risk of other family members suffering from pancreatic cancer is 4 times of that of the general population, such as the incidence of 2 people rises to 12 times, and the incidence of 3 people is even as high as 40 times. Some researchers have come across many cases of pancreatic cancer in the family of mother and daughter, father and son, siblings and grandchildren. Smoking is the only recognized risk factor for pancreatic cancer. Research shows that the risk ratio of death of pancreatic cancer patients who smoke and non-smokers is 1.6-3.1:1, and research has proved that carcinogenic substances in tobacco can cause cancer of pancreatic duct epithelium. 3, unhealthy diet The World Cancer Research Fund and the American Institute for Cancer Research have summarized the relationship between diet and pancreatic cancer. It is believed that foods rich in red meat (pork, beef and mutton), high fat and high energy may increase the risk of pancreatic cancer, while the incidence of pancreatic cancer can be prevented by 33% to 50% through the intake of a diet rich in vegetables and fruits.