Kidney cancer refers to renal cell carcinoma, which is a relatively common substantial malignant tumor of the kidney, accounting for 85% of renal malignancies. The high incidence age is 50-70 years old. There are no obvious symptoms in early stage, and 60% of kidney cancers are detected during health checkup or other disease examination. A few kidney cancers present with microscopic hematuria and unexplained fever in the early stage. Hematuria, pain in the kidney area and abdominal mass are the typical manifestations of kidney cancer. Although there is no obvious symptom in the early stage of kidney cancer, but in the middle stage of development, kidney cancer may enter the renal pelvis and cause different degrees of hematuria with streaky blood clots and severe renal colic if the clots block the ureter. If the blood clot blocks the ureter, severe renal colic will occur. The pain in the lower back is caused by the continuous growth of the kidney cancer mass pulling the kidney peritoneum, and the pain is continuous. In a small number of patients with kidney cancer, a lump is found in the abdomen, which is usually located in the upper abdomen under the rib cage and can move up and down with breathing movement. However, in the advanced stage of kidney cancer, when the tumor invades the organs or muscles around the kidney, this lump will be completely fixed. 10-20% of kidney cancer patients often have fever, hypertension and increased blood sedimentation, etc. 30% of patients first visit the doctor due to metastatic tumor symptoms. They manifest as pain, persistent cough and hemoptysis at the site of bone metastasis. Therefore, when these symptoms appear in the body, it is necessary to go to the hospital for examination of related aspects to exclude the possibility of kidney cancer. It is possible to cure kidney cancer in early treatment, so early detection is very important.