Gastrectomy 10 days to eat what vomit considerations may be related to delayed gastric emptying, input segment obstruction, output segment obstruction, anastomosis mechanical obstruction, etc., it is recommended to check and clarify the cause, symptomatic treatment. 1. Delayed gastric emptying: in case of gastric resection, the obstruction of peristaltic function of the residual stomach leads to delayed gastric emptying, which is manifested as fullness and dull pain in the upper abdomen within a few days after removing the gastric tube, starting to eat or eating, followed by vomiting gastric juice and bile with food, it is recommended to give gastric motivation drugs such as domperidone to alleviate the symptoms. 2. Input segment obstruction: manifested by sudden distension or colic in the upper abdomen after eating, nausea, projectile vomiting of a large amount of food without bile, and the symptoms disappear after vomiting. It is mainly caused by the distortion and compression of the input segment. Surgery is recommended to relieve the obstruction. 3. Obstruction of the output segment: manifested as fullness in the epigastrium, vomiting of food and bile. It is mainly caused by postoperative intestinal adhesion, large omentum edema or necrosis, and inflammatory mass compression, and surgery is recommended to relieve obstruction. 4. Mechanical obstruction of anastomosis: manifested as massive vomiting with abdominal pain after eating, mainly due to the anastomosis is too small, the gastric wall or intestinal wall inversion is too much, or the output segment retrograde set of blocking the anastomosis. The treatment is surgical release. Vomiting after gastrectomy requires vigilance, and it is recommended to consult a doctor in time to find out the cause and carry out targeted treatment.