Surgery is one of the choices for many bone cancer patients, and many bone cancer patients have certain inhibition effect on their condition through surgery, and most of them can get more satisfactory therapeutic effect, but the harms of surgery to human body come from its recurrence and metastasis, so it is more important to pay attention to the prevention after surgery. Why does bone cancer recur after surgery? Bone cancer patients usually do not follow the doctor’s suggestion of regular follow-up and review after surgery, and they do not regret it until the bone cancer recurs again. Generally speaking, the body immunity of bone cancer patients decreases, so it leads to the recurrence of bone cancer patients. Many bone cancer patients already have decreased body immunity before surgery, plus the blow of surgical trauma and anesthesia to body resistance, which leads to even lower immunity. If they do not pay attention to strengthen nutrition after surgery and do not recover immunity in time, it provides opportunities for tumor recurrence or metastasis. At the same time, mentality is also a very important factor that determines the recurrence of bone cancer patients. Some people who are often angry, depressed and irritable, will easily lead to poor operation of qi and blood in the body, which will lead to more and more serious condition, therefore, patients should keep optimistic and positive mentality. How to prevent recurrence of bone cancer after surgery 1. After the completion of surgical treatment, we should pay close attention to the recovery of patients, if there is any sign of recurrence, we should go to the hospital immediately for consultation with doctors and take active measures to treat the disease. 2.After surgery, patients must prohibit smoking to avoid recurrence of bone cancer. If there is lung function decline, patients should be instructed to increase exercise gradually. 3. Bone cancer or undifferentiated cancer can easily metastasize to other places, such as metastasis to lymph glands, bone, liver, brain and contralateral lungs, so attention should be strengthened for such problems. 4. Headache, liver pain, shortness of breath, bone pain, hepatomegaly, sputum and blood, enlarged supraclavicular lymph glands, change of vision, severe cough, and it is necessary to pay attention to whether the patient has fever and chest pain often, and should go to the hospital in time when the above symptoms are found. At the same time, patients should go to hospital regularly for chest radiography and keep fresh sputum to check cancer cells. Diet of postoperative bone cancer patients should follow the following 4 principles: 1. High protein and low fat, postoperative bone cancer patients should pay attention to increase the intake of high quality protein, such as chicken, fish, eggs, lean meat, soybean products, etc., and greasy food, such as fat meat, etc., can be moderately consumed. 2. 2. Strictly limit the intake of sugar. The diet of bone cancer patients should minimize the intake of sugar. Because the energy of cancer cells mainly comes from sugar, the ability of cancer cells to take sugar is 10 to 20 times of normal cells. Diet of postoperative bone cancer patients should be based on patient’s preference, and there is no need to be overly concerned about whether it is reasonable or not, as this is also a taboo, and that can not be eaten, which will make the patients have no appetite and will be harmful to the recovery. 4, regular quantitative, small meals, postoperative patients with poor appetite, so attention should be paid to increase the pattern of food, to ensure that the color and flavor, light and tasty, which helps to improve appetite and increase nutrition. Attention should be paid to the fact that each meal should not be too much, and eating less and more meals is conducive to the recovery of intestinal function. Bone cancer anemia patients should “avoid” 1, avoid drinking tea, tannic acid in tea is easy to combine with low-valent iron to form insoluble tannic acid iron, hindering the absorption of iron, lack of iron will reduce the synthesis of hemoglobin in the body and aggravate the symptoms of anemia. 2, avoid eating garlic, garlic contains more volatile substances, too much food will inhibit gastric secretion, so that hemoglobin, red blood cells to reduce, aggravate anemia. 3, avoid drinking milk, milk contains less iron, but calcium, phosphorus content, the body’s iron is easy and milk calcium, phosphorus combined to generate insoluble iron-containing compounds, reduce the body’s iron content, aggravate anemia symptoms. 4. Strictly limit fat, too much fat intake can inhibit the hematopoietic function of human body, and also affect the digestion and absorption function of patients. Therefore, patients with anemia of bone cancer should not consume more than 70 grams of fat per day, generally about 50 grams. 5. Eat less alkaline food, such as steamed bread, buckwheat noodles and other alkaline food is not conducive to iron absorption, and it will also affect the free and transformation of iron in food. 6, eat less indigestible food, anemia patients often have digestive disorders at the same time, should eat less peanuts, walnuts, almonds, leeks, garlic, onions and other indigestible food. In fact, no matter which kind of disease we have to pay attention to dietary details, as the saying goes, “disease enters by the mouth”, we should understand that reasonable arrangement of diet can prevent diseases, and reasonable arrangement of diet can also enable patients to recover health as soon as possible. To sum up, it is very important for bone cancer patients to take care of themselves after surgery, not only to keep a good mood, but also to pay attention to various aspects such as diet, exercise, living habits, etc., to strengthen nutrition, but also to go to the hospital for review regularly, to prevent recurrence and metastasis, and to avoid deterioration of the condition.