If you want to know whether you have uremia, you must first understand the concept of uremia. Uremia refers to various acute or chronic kidney diseases developed to the serious stage of renal failure, medical examination of patients with glomerular filtration rate <15ml/min, blood creatinine >707μmol/L, clinical manifestations often show nausea, vomiting, loss of appetite, oliguria, edema, anemia, general weakness, panic, chest tightness, dyspnea, etc. If there are manifestations of nausea, vomiting, loss of appetite, oliguria, edema, anemia, general weakness, panic, chest tightness and dyspnea, especially patients with other underlying diseases such as chronic kidney disease, hypertension, diabetes, purpura, tumor, systemic lupus erythematosus, etc., they should promptly go to hospital for examination. The most convenient and economical examination after going to the hospital is the routine urine test and blood kidney function test. If abnormalities such as proteinuria and hematuria, blood creatinine >707μmol/L and glomerular filtration rate <15ml/min are seen in the routine urine examination, the patient can be diagnosed with uremia and needs to be hospitalized for further examination of the cause of uremia and the various complications that are present, and some patients need to be treated promptly or their lives will be endangered.