Clear cell renal cancer may recur after treatment. Primary renal cancers are malignant tumors originating from the tubular epithelial system of the kidney, while clear cell carcinoma accounts for about the majority of them, accounting for about 85% of renal malignant tumors. The biological characteristics of malignant tumors are invasiveness and metastasis. For early-stage clear cell renal carcinoma, the possibility of recurrence is small when aggressive surgical treatment is given; if the disease has progressed or metastasized, the possibility of recurrence is larger. Even for early-stage renal cancer, recurrence/metastasis is still possible after surgery. Recurrence and metastasis often occur within 1 to 2 years after surgery, and most of them occur within 5 years after surgery, with an incidence rate of 20% to 30%. In addition, 20% of patients with new-onset cases have already developed distant metastasis at the time of diagnosis. If kidney cancer is suspected or diagnosed, it is recommended to go to regular hospitals for comprehensive evaluation of the condition, follow the doctor’s instructions to cooperate with the treatment, choose the appropriate treatment plan to improve the prognosis of the patients, and follow the doctor’s instructions to review the condition after the operation, so as to avoid the delay of the condition.