Bad kidney can lead to renal hypertension, urine protein, red blood cells, edema, and in severe cases, it may lead to uremia, causing nausea and vomiting. The main function of kidney in human body is detoxification and drainage, so when kidney is bad, if water cannot be excreted out of the body, it can not only cause edema of eyelids or both lower limbs, but also may lead to renal hypertension. Sometimes this blood pressure is higher and very difficult to control. A bad kidney can cause an increase in the permeability of the filtration membrane of the kidney, from where protein and red blood cells are lost, which can be detected in urine routine. Among them, the appearance of urine protein not only means that the kidney’s filtration membrane permeability is damaged, on the other hand, it also in turn aggravates the kidney’s function, which can be said to be a vicious circle process. The progression of kidney disease will eventually lead to uremia, when patients will experience serious digestive symptoms, such as nausea, vomiting and loss of appetite due to the accumulation of toxins.