Low-grade malignant tumors are likely to be cured after resection. The so-called low malignant tumors can indicate that the degree of malignancy of the tumor is very low, it is not easy to appear distant metastasis, and the growth cycle of the tumor is slow, the prognosis is often better, especially in the early stage of low malignant tumors, after surgical resection, the cure rate is greatly increased. However, the degree of malignancy of the tumor is not necessarily related to the cure after surgery. For early stage tumors, no matter low-grade or high-grade malignant tumors, it is possible to be cured through radical surgery in time to remove the tumor completely. If the tumor reaches the middle or late stage, or even has lymphatic metastasis or distant organ metastasis, the cure rate of both low-grade and high-grade malignant tumors decreases, and even if it is treated by surgery, it can only prolong the patient’s life.