Having uremia requires dialysis. The main function of kidneys is detoxification, drainage, if the toxins in the body can not be eliminated not only can cause nausea, vomiting symptoms, but also cause damage to various organs, such as the heart, lungs and other important organs, the function of organs will gradually decline and cause a series of problems. If the water in the body can not be excreted, not only can cause the symptoms of edema, serious patients will also cause heart failure, leading to respiratory difficulties, causing cerebral edema leading to coma, so that patients enter the uremia stage of chronic renal failure. Uremia is the end stage of the development of various kidney diseases, once into the uremia stage need to be given hemodialysis treatment, hemodialysis machine is also called an artificial kidney, from the name you can know its role. Apart from hemodialysis, kidney transplantation can also be considered for uremia, which is more effective than hemodialysis.