Kidney cancer t3aNomo generally refers to kidney cancer T3aN0M0 is the stage of kidney cancer, which stands for primary kidney cancer without lymph node or distant metastasis. The staging of kidney cancer adopts the TNM staging formulated by the American Joint Committee on Cancer Staging, where T refers to the primary focus, N is lymph node and M is distant metastasis. T3a indicates that the primary tumor invades the renal vein or its branches of the renal segmental veins, as well as invades the renal pelvic calyceal system, perinephric fat, and renal sinus fat, but does not exceed the perinephric fascia; N0 is to indicate that there is no metastasis in the lymph nodes; and M0 is mostly to indicate that there is no evidence of distant metastasis. TNM staging of kidney cancer can provide an important basis for clinical diagnosis of the disease, as well as treatment of the disease. Once diagnosed with kidney cancer, patients should take into account their own situation and cooperate with doctors to take relevant treatment measures. During the treatment period, once abnormal discomfort occurs, patients should consult the doctor in time. In daily life, patients should ensure enough rest time, avoid overwork and keep a positive and optimistic mindset.