Pancreatitis,the pancreas digestion itself as well as its surroundings,is a potentially fatal disease involved in severe public health care burdens [1].It is broadly classified into acute and chronic pancreatitis.The incidence of acute pancreatitis is 13-45 cases per 100,000persons each year worldwide.Compared with acute pancreatitis,chronic pancreatitis,although lower in prevalence than acute pancreatitis,has profound effects on the patients quality of life.