Congenital one kidney, if this one kidney does not have underlying diseases such as nephritis or kidney stones, it has no effect on the person. Although the human body has two kidneys, research has found that one kidney is able to do the work of two kidneys, of which the kidney transplant patients are an example. Patients with uremia need a kidney transplant, and after a kidney is transplanted, this kidney is able to have all the functions of its own kidney, and can effectively detoxify and drain. From here we can see that one kidney does not have much effect on the body. However, patients with one kidney need to pay attention to keep warm in ordinary life, avoid infection, avoid taking drugs on their own, especially anti-inflammatory and analgesic drugs; pay attention to clean diet in ordinary life, avoid acute gastroenteritis, all these factors can lead to damage of kidney function. In addition, it is also necessary to develop the habit of regular check-ups, especially urine routine, kidney function and kidney ultrasound, etc.