Renal clear cell carcinoma usually metastasizes to lungs, bones and liver. Clear cell carcinoma is the most common type of renal cancer, which comes from tubular epithelial cells, the main pathogenic factors lie in smoking and overweight, and there is no obvious symptom in early stage, in which the most typical triad of renal cancer is hematuria, lumbar pain and abdominal mass, and in early and middle stage when the tumor is more confined, the most important treatment is surgical resection, while in late stage, the main treatment is comprehensive treatment. The most typical feature of advanced stage cancer is that cancer cells will undergo distant metastasis, and the most important metastatic sites of kidney cancer are lungs, bones and liver, so some advanced stage patients come to hospitals with metastatic manifestations, such as hemoptysis, bone pain and liver pain, as their first diagnosis symptoms. If you find symptoms such as hematuria in urine or lumbar pain, you should consult doctor promptly.