Renal staggered tumors are benign tumors caused by abnormally proliferating vascular smooth muscle and fatty tissue that tend to grow in parenchymal organs, such as the kidneys. Renal malformation tumors are benign tumors of the kidney composed of blood vessels, fat, and smooth muscle in varying proportions. The cause of renal malformation tumors is unknown and may be genetically related. Its symptoms are related to the size of the tumor, the presence of rupture, the location of the tumor and other factors, and sometimes it can present with symptoms such as low back and abdominal pain, abdominal mass, hematuria and so on. If the renal malformation tumor is relatively small and does not cause corresponding symptoms (such as abdominal pain, hematuria, renal function and other abnormalities), surgery may not be necessary for the time being. For renal malformations larger than 4cm, timely surgery such as malformations resection should be performed, otherwise the risk of malformations rupture may result.