The vomiting condition usually disappears after anesthesia in about 3-4 days. There are many causes and influencing factors for the onset of post-anesthesia vomiting, the main reason being the implementation of anesthesia induction for a short period of time after eating, the excitement during many diseases themselves and trauma can also slow down gastric emptying, and food excites the vagal vagal afferent nerves in the abdominal cavity through its volume and chemical composition, creating sufficient prokinetic drive under the central action of anesthetics. Acute postoperative gastric dilatation due to unsustained gastrointestinal decompression in patients undergoing gastrointestinal surgery can also lead to nausea and vomiting. Anesthetic drugs themselves also have a significant effect on gastric emptying, and drugs given for postoperative analgesia may also induce vomiting, which is higher with intralesional anesthesia than with general anesthesia.