Smoking is a risk factor for pancreatic cancer and is associated with chronic pancreatitis. Tobacco contains a lot of toxic substances such as nicotine and tar. Smoking prompts the secretion of carcinogenic substances into the bile ducts, which subsequently flow back into the pancreatic ducts, and these toxic substances also enter the pancreas with the blood, leading to the formation of pancreatic cancer. Smoking can lead to an increase in pancreatitis and can also cause great harm to the human respiratory system, digestive system and cardiovascular system, so it is recommended to prohibit smoking. At the same time, pay attention to diet regulation, avoid eating too greasy food, reduce the burden on the gastrointestinal tract and reduce the burden on the pancreas. Eat more fresh vegetables and fruits, eat regularly, eat less and more often, and avoid overeating, which can induce the onset of pancreatitis.