There is no clear time definition for the recurrence of clear cell carcinoma grade II. Most patients will improve after systematic and regular examination and treatment, and can achieve the goal of clinical cure without recurrence. Some patients with grade II clear cell carcinoma have relatively more complicated disease at the time of onset and may have recurrence within a short period of time. In addition, it should be judged according to the specific situation during surgery. If the cut edge is positive, that is, the tumor is not cut cleanly, and it may recur within a short time. If the cut edge is negative, the tumor may not recur or may recur only after a long time. Judgment should be made on a case-by-case basis and cannot be generalized. Kidney cancer is a tumor with high incidence in the urinary system, ranking second in the incidence of urinary system. Urinary routine, ultrasound and CT examinations are needed to clarify the specific situation of the tumor. As long as it can be removed surgically, surgery is the most fundamental treatment method. Patients can undergo appropriate radiotherapy, chemotherapy and targeted drug therapy after surgery, and can also be combined with immunotherapy. Whether to choose or not to proceed to the next step of treatment should be judged according to the patient’s will and the experience of the treating physician.