Can both sides of the kidney misshapen tumor be operated together? Kidney misshapen tumor usually does not need surgery, and clinically it is even less recommended to operate on both sides at the same time, as the kidneys are rich in blood flow, the surgery will easily lead to bleeding in the kidneys, and the simultaneous surgery of both kidneys may lead to renal failure, which will result in an irreversible situation. Ermoid tumor is a common benign renal tumor in clinic, which belongs to pseudotumor. Ermoid tumor treatment can be divided into two kinds: conservative treatment and surgical treatment. 1. Conservative treatment: Generally applicable to those malignant tumors without clinical symptoms, small tumor size and no compression symptoms, malignant tumors generally have very low possibility of malignant transformation, and their size is relatively small, so when conservative treatment is used, only dynamic observation of the tumor size is needed to see whether there is any obvious change, whether it leads to endocrine changes in the human body or not, and there is no need to carry out other treatments. 2. Surgical treatment: For renal malignant tumors with bleeding or larger than 5cm, surgical treatment can be considered, including preserving renal unit surgery or nephrectomy. If you have any of the above diseases, it is recommended to go to the hospital to avoid delaying your condition