Some patients need to undergo a distal gastrectomy for a gastric tumor or gastric ulcer. Distal gastrectomy generally refers to the removal of 60%-80% of the distal stomach, and the stomach will be very small after the cut. Specific precautions are as follows: 1. After the operation, you must pay attention to the doctor’s words, especially in the diet, because the stomach function will be affected after the gastric resection, if you do not pay attention to the diet, gastric retention may occur, that is, the food you eat cannot go down; 2. After the gastric resection, you should eat reasonably, from liquid food, semi-liquid food to ordinary diet, because the amount of each meal will be significantly reduced, in the early postoperative period, especially in the first month after the operation. In the early postoperative period, especially in the first month after surgery, each meal can not eat too much, must increase the number of meals, eat 6-7 meals a day, the total amount of meals eaten each day can not be reduced, but only the number of times to increase, in the case that the amount of meals can not be guaranteed, as far as possible to high nutrition, such as protein powder, drink milk, eat fish, rather than only drink noodle soup, rice soup every day, the nutritional value is not enough, postoperative malnutrition may occur; 3, after the distal gastrectomy, may be appear anemia, must promptly go to the hospital for review to see if there is iron deficiency anemia, if there must be timely supplementation.