Usually, Ewing sarcoma needs 6~8 courses of chemotherapy after surgery, you should pay attention to cooperate with the doctor’s treatment and strictly follow the doctor’s instructions. Ewing sarcoma belongs to a kind of malignant tumor, the disease is easy to recur, the prognosis is poor, and the clinical to chemotherapy, surgery, radiation therapy and other treatments. If Ewing sarcoma patients are diagnosed with relatively good condition after surgery, they usually need chemotherapy for about 6 months in order to kill cancer cells in the body, control the progression of the disease, alleviate uncomfortable symptoms and prolong the survival time. Some patients with unsatisfactory surgical resection effect, higher malignant degree, larger tumor invasion scope and distant metastasis need 8 courses of chemotherapy or even more. For Ewing sarcoma, the main chemotherapeutic drugs used are vincristine, doxorubicin, cyclophosphamide, etoposide, etc. Contraindications need to be examined before using the drugs. It is recommended that post-surgical Ewing sarcoma patients should adjust their mindset and choose further chemotherapy or radiation therapy after evaluation by the doctor, and should also pay attention to regular medical review to monitor the changes in their condition.