Benign tumors generally have no grading and staging. Benign tumor refers to the tumor without infiltration and metastatic ability, the tumor is often formed around the envelope, and the normal tissue border is clear, the growth is expansive, the growth is slow, the tumor is mostly spherical, nodular, mostly unilateral, the tumor cells are mature in differentiation, and usually less harmful to the organism. Benign tumors can usually be treated surgically, the principle is complete resection of the tumor, because benign tumors have no infiltration and metastasis, so there is no grading and staging. Unlike benign tumors, malignant tumors can be staged according to the primary tumor, the presence of lymphatic metastasis, and the presence of distant metastasis, thus helping to formulate a reasonable treatment plan and predicting the prognosis. If benign tumors are found, it is recommended to go to the hospital for examination and reasonable treatment under the guidance of physicians.