If it is early stage pancreatic cancer, it usually takes half a month of recovery time, and if it is advanced stage pancreatic cancer, it takes one month or longer recovery time. In early stage pancreatic cancer, if the local infiltration of the tumor is shallow and there is no distant metastasis, only part of the stomach needs to be resected, and the trauma of surgical resection is small, so the recovery time is shorter, and it usually takes about half a month for the patient to recover. However, for patients with progressive pancreatic cancer, they need to undergo major gastrectomy or even total gastrectomy, which is more traumatic and requires longer recovery time accordingly, and may take one month to recover, and even more than one month to recover for patients who are old and weak and in poor physical condition. Patients are advised to consult their doctors promptly if they have any discomfort and take active treatment to avoid delaying their condition.