After duodenectomy, recovery usually takes about 1 month if the resection is for benign disease, or about 3 months if the disease is malignant. In current clinical practice, duodenectomy is required for certain diseases of the duodenum. If it is due to benign diseases, such as duodenal ulcer, the recovery will be about 1 month after the operation; if it is due to malignant diseases, such as pancreatic head cancer invading the duodenum, the operation is more extensive, and the recovery will take a longer time, usually about 3 months after the operation, or even longer. Besides, the recovery time after duodenectomy is also related to other factors, such as the presence or absence of postoperative complications, the severity of the patient’s condition, the patient’s physical and nutritional status, and so on. Therefore, it is recommended to ask for professional advice.