There are many kinds of symptoms before death in advanced uremia, as follows: 1, for example, if the patient is suffering from cardiac arrhythmia due to severe hyperkalemia, the patient will have severe panic and chest tightness before death; 2, if the patient has severe gastrointestinal hemorrhage and dies, the patient will have a large amount of blood stool; 3, if the patient is suffering from respiratory failure due to severe metabolic acidosis, the patient may If the patient dies from cerebral hemorrhage, the patient may become unconscious and unable to breathe. In addition, the cause of death is the final appearance of respiratory and circulatory failure, such as a drop in blood pressure and respiratory arrest, which is mainly manifested by loss of consciousness and cold sweats.