Most pancreatitis causes abdominal pain, but in some patients, the pain radiates along the nerves to the lower back because the abdominal pain symptoms are too severe. Before the onset of pancreatitis, the patient may have consumed a lot of food or alcohol, especially a lot of fat. These factors are extremely likely to cause the onset of acute pancreatitis, which leads to severe pain and causes low back pain. In a few cases, pancreatitis may also be combined with intestinal disease or peritonitis, which can also cause low back pain. The pain caused by an attack of pancreatitis is more difficult for most people to bear. In addition, if pancreatitis is not treated in time, it may lead to other diseases, which may even be life-threatening in serious cases. Therefore, patients who have been diagnosed with pancreatitis should actively cooperate with the treatment, strictly follow the doctor’s instructions to fast, abstain from food and water at the beginning of the treatment, eat only liquid food for one month after the initial treatment, strictly limit the intake of starch and fat, and review regularly to avoid irreversible results of the aggravation of the disease.