The statement that kidney cancer is not cancer is not accurate. It is only possible to be cured because certain early kidney cancers are not very malignant attacks and can be effectively eradicated with active treatment. Given this characteristic of kidney cancer, there will be the statement that kidney cancer is not cancer. The medical definition of kidney cancer is malignant tumor of urinary tubular epithelial system of kidney parenchyma. Early stage kidney cancer may have no obvious symptoms, while late stage kidney cancer is clinically characterized by back pain, hematuria and lump in the back as typical symptoms, and some patients will also have symptoms such as weight loss, cachexia, fever, abnormal liver function, abnormal blood clotting mechanism, etc. In addition, some kidney cancers are diagnosed because of distant metastasis of tumor, which are mostly manifested as bone pain, fracture and symptoms such as bone pain, fracture and hemoptysis. If symptoms of kidney cancer are suspected, patients are recommended to go to the urology department or oncology department of the hospital in time, and professional doctors will determine whether kidney cancer has occurred based on imaging and laboratory tests. If kidney cancer is diagnosed, treatment will be carried out according to the clinical stage of kidney cancer. The treatment of kidney cancer can choose radical nephrectomy, partial nephrectomy with preservation of kidney units, etc. According to the tumor stage, targeted therapy and immunotherapy can be considered for advanced kidney cancer that cannot be surgically removed.