Kidney cancer is a malignant tumor. Kidney cancer can be divided into clear cell carcinoma, renal suspicious cell carcinoma, renal papillary cell carcinoma and renal collecting duct carcinoma, and other less common types according to their pathological types, among which the most common kidney cancer in clinical practice is mainly renal clear cell carcinoma. Kidney cancer is used as the abbreviation of malignant tumor. Kidney tumors are divided into malignant tumors and benign tumors. Benign tumors of kidney include renal vascular smooth muscle lipoma, i.e. renal malignant tumor, and other relatively rare benign tumors, such as renal yellow granuloma, etc. If found to be renal cancer, i.e. renal malignant tumor, early treatment is generally required, and the use of surgical treatment is the most preferred treatment method.