There is no specific statistics on the recurrence rate of kidney cancer smaller than 3cm, which is related to the patient’s individual physical condition and treatment method, generally speaking, the recurrence rate is less. The prognosis of kidney cancer is often related to the type, stage and differentiation of kidney cancer. Generally speaking, as long as the kidney cancer has not invaded the renal peritoneum and with standardized treatment, the recurrence rate is relatively low; if it belongs to grade III-IV kidney cancer which is very poorly differentiated, the recurrence rate is very high. To judge the recurrence rate of kidney cancer, we can’t rely on the size of the tumor to judge the recurrence rate of the cancer cells, but also need to combine the pathological type of the cancer, whether lymph node metastasis occurs, whether there are other complications and other factors for comprehensive consideration. Kidney cancer is a kind of cancer with great danger, if patients feel sick, they need to consult the doctor for examination in time, and need to receive treatment under the guidance of specialized doctors.