There are two major aspects that should be paid attention to: one is the follow-up of kidney tumor, the main purpose of which is to check whether there are recurrence, metastasis and new tumor. The second aspect is the protection and examination of renal function after surgery. Since most patients have one kidney left after kidney cancer surgery, more attention should be paid to this kidney so that any problems can be detected and treated in time. The first stage is about one week after surgery, mainly asking about the general condition after discharge; checking the healing of the wound; informing the postoperative pathological results and prognosis; discussing further adjuvant treatment; for patients with medical insurance, they need to do major medical insurance; if the wound is dry and there is no special discomfort, family members can visit on behalf of the patient during this follow-up visit; the second stage is 4~6 weeks after surgery, mainly Assessment of renal function, recovery status after blood loss and the presence of surgical complications. For patients with partial nephrectomy, renal CT scan will be performed 4-6 weeks after surgery to understand the morphological changes of the kidney for future review; the third stage is the long-term follow-up plan. After that, follow up once a year. Routine follow-up includes: ① history inquiry; ② physical examination; ③ routine blood and blood biochemical examination: liver, kidney function and abnormal blood biochemical indexes of preoperative examination, blood sedimentation, C-reactive protein, blood calcium, etc. ④ Chest X-ray (frontal and lateral). Patients with abnormal findings on chest X-ray examination are recommended to undergo CT scan examination of the chest or choose CT examination of the chest directly; ⑤ Abdominal ultrasound examination. Patients with abnormalities found in abdominal ultrasound examination, kidney preservation surgery and patients with middle and late stage (T3~T4) renal cancer after surgery need to have abdominal CT scan examination, which can be performed once every 6 months for 2 years, and later depending on the specific situation. Pay attention to the protection of renal function after surgery to delay the emergence of renal insufficiency as much as possible. Do not take drugs indiscriminately: many commercially available mixed painkillers, cold medicines and herbal medicines have nephrotoxicity, do not take them indiscriminately without a physician’s prescription, antibiotics and painkillers prescribed by physicians should also know what their side effects are, especially some herbal medicines, which have not been rigorously tested for adverse effects on kidney function, but the traditional habit of believing that herbal medicines have no side effects, resulting in irreversible effects in the end. So try not to use the medicine that can be used. Known herbal medicines and some commonly used western medicines include those containing aristolochic acid, such as Guanmu Tong, Guang Fangji, Qing Mu Xiang, etc., as well as non-steroidal anti-inflammatory drugs, antibacterial agents, such as painkillers, paracetamol, etc., which can easily cause kidney damage.