Besides genetic factors, the causative factors of pancreatic head cancer are also related to lifestyle habits such as smoking, preference for greasy food, high protein food, fried food, low dietary fiber food, drinking alcohol and coffee, so you should pay attention to your diet in general. You should not be too obese. Some people who suddenly develop diabetes should also pay attention to check whether they have pancreatic head cancer. The most important diagnosis relies on CT, MRI and so on. The more sensitive blood test index is CA199. The prognosis of pancreatic head cancer is poor, and surgery is the only treatment method with hope of cure. However, only 30% of patients can be surgically removed after diagnosis, and most of them have no chance of surgery.