Uremia stage 5 is more serious, uremia stage 5 is an irregular call, chronic renal failure includes 5 stages, stage 1 is the beginning stage of chronic renal failure, stage 5 is the end stage of chronic renal failure, which is the uremic stage, so, uremia stage 5, accurately should be called chronic renal failure stage 5. Patients with this stage of chronic renal failure have basically lost the ability of detoxification and drainage of the kidneys, and toxins accumulate in the body, and patients will have obvious symptoms such as nausea, vomiting, edema, wheezing, anemia, and elevated blood pressure. Patients in this stage are prone to hyperkalemia, which is a very common cause of death in patients with uremic syndrome. Patients in this stage are prone to death, whether it is a cardiovascular accident or hyperkalemia, which can occur from time to time.