Uremic patients have more causes of death, the process of death is also different, uremia is the ultimate result of various kidney diseases, there are many clinical complications leading to death. First, the cardiovascular system is the most common and serious pericarditis, uremic cardiomyopathy, coronary artery disease, myocardial infarction, cardiac failure, manifested as palpitations, shortness of breath, telangiectasia, inability to lie down, and gradually coughing, coughing up blood and endangering the life of the individual patient because of hyperkalemia, cardiac arrest and sudden death. Second, gastrointestinal hemorrhage, patients appear nausea, vomiting, vomiting blood and black stool, hemorrhagic shock and life-threatening. Third, infection, infection is also the most common complication and cause of death, mainly lung infection. Fourth, neurological, the emergence of uremic encephalopathy, hypertensive encephalopathy, cerebral hemorrhage, cerebral infarction, the patient suffers from impaired consciousness, drowsiness and coma eventually leading to death.