Obvious symptoms of kidney cancer include hematuria, pain and mass, paraneoplastic syndrome, and some metastatic tumor symptoms. 1. “Kidney cancer triad”: hematuria with intermittent painless hematochezia is the most important symptom. Pain is mainly dull pain in lumbar renal region, due to tumor invasion to lumbar large muscle or adjacent organs. The mass is usually an abdominal mass. 2. Paraneoplastic syndromes, such as fever, high blood pressure, rapid blood sedimentation, etc. Hypercalcemia, hyperglycemia, liver function abnormalities, etc. may also occur. 3. About 30% of patients will have symptoms of tumor metastasis, such as cough, hemoptysis, nerve paralysis brought by bone metastasis. If there is any discomfort, it is recommended to go to regular hospitals to evaluate the condition in time and follow the doctor’s instructions for treatment, so as to avoid delaying the condition.