1, mentality and physical fitness: maintain a comfortable mood, moderate activity, avoid exertion and cold.2, diet: (1) Generally, after gastrectomy, the patient's intestinal function can be gradually recovered in 1-3 days, when the intestinal ventilation (i.e. farting), then a small amount of clear liquid diet can be eaten, such as rice broth, diluted lotus root powder, honey water, noodle soup, bok choy soup, etc., each time to drink about 100 ml, and the number of meals is 7-8 times a day. After 3-5 days, you can eat rice, millet, steamed egg custard, egg soup, egg batter, etc. for about 6 times a day. At this stage, do not eat food that is easy to produce gas, such as milk, soymilk, etc., as well as food containing much crude fiber, such as celery, bean sprouts, onions, etc. (2) Small amount and many meals: 5~6 meals per day, about 50 grams per meal after discharge from the hospital, gradually increasing, until 6~8 months to resume 3 meals per day, about 100 grams per meal, and close to normal diet after 1 year. (3) In order to prevent the occurrence of dumping syndrome, after gastrectomy, in addition to a small number of meals and drinking as little water as possible when eating, it is also necessary to pay attention to try not to eat a diet high in sugar. In addition, lying down for about 30 minutes after eating is also good for preventing dumping syndrome. (4) In short, to quantitative, appropriate amount, it is advisable to eat a light diet, avoid raw, cold, hard, spicy wine and other stimulating diet, eat more vegetables and fruits, do not eat greasy and too sweet food. 3, the appropriate addition of medication: (1) Follow the doctor's instructions to take digestive aids and anti-anemia drugs. (2) Also pay attention to add food containing calcium and vitamin D to the diet to facilitate bone calcification. 4, in the cooking method: pay attention to the use of boiling, braising, steaming, stewing and other cooking methods as far as possible, rather than cold, deep-fried, frying and other methods, in order to facilitate the digestion and absorption of food. 5, to maintain smooth stools, to observe the presence of black stools, bloody stools, and find abnormalities in a timely manner to seek medical attention. 6, if there is abdominal pain, acidity, belching or even nausea. 7, if there is a problem of abdominal pain, acidity, or even vomiting. 8, if there is a problem of abdominal pain, acidity, belching or even vomiting, the patient should be treated promptly. and belching or even nausea and vomiting are promptly examined and treated.