How long it takes for pancreatic cancer to recur is usually related to the patient’s specific condition, treatment effect, etc., and cannot be generalized. Generally, the recurrence rate within one year after surgical treatment can be up to about 50%-70%. There are no obvious symptoms in the early stage of pancreatic cancer, and when patients go to the hospital to confirm the diagnosis of pancreatic cancer, most of them are already in the middle and late stage. The principle of treatment is based on surgical treatment, combined with radiotherapy and other comprehensive treatments. However, most of the patients with pancreatic head cancer have lost the chance of radical surgical resection at the time of diagnosis, and can only use chemotherapy to control the development of the disease. According to relevant data, the recurrence rate of pancreatic cancer patients within one year after surgery is 50%-70%, especially for advanced pancreatic cancer patients, the average time of recurrence is earlier. Therefore, pancreatic cancer patients should be detected and treated as early as possible, and should undergo regular review after treatment to closely monitor the recovery and recurrence.