Due to the improvement of the quality of life, so many people neglect their health status while enjoying their life, so that they are not aware of the problems of their kidneys. Chronic renal failure is one of the kidney diseases, because the disease will cause a lot of damage to the human body, for this reason, we need to strengthen the importance of renal failure. So, what are the symptoms of chronic renal failure? Chronic renal failure will have some of the following symptoms: First, the past medical history is unknown, sometimes need to be differentiated from acute renal failure, anemia, uremic face, hyperphosphatemia, hypocalcemia, elevated blood PTH concentration, double kidney shrinkage, to support the diagnosis of this disease. Renal biopsy may be performed when needed. The underlying disease causing chronic energy renal failure should be investigated as much as possible. As toxins and waste products continue to accumulate in the body, the patient may feel unwell. Symptoms include nausea, vomiting, poor night sleep, lack of appetite, itching and fatigue. Third, swelling Some patients may experience swelling. Decreased urine output and frequent urination (especially at night). Swelling of hands, feet and ankles. Other symptoms include shortness of breath and swelling around the eyes. Fourth, anemia Due to impaired kidney function, the body can not produce enough hormones needed to make red blood cells, thus producing anemia. People with anemia often feel cold and tired. Fifth, other symptoms Other symptoms of the disease, such as hematuria (tea-colored or blood-red), high blood pressure, foam in the urine, diarrhea, extreme thirst, disturbed sleep, or lethargy, decreased libido and so on. Because the onset of chronic renal failure is very slow, which in turn leads to the patients can not find out the condition in time, and then the body suffers more harm. Chronic renal failure can cause harm to the patient’s body, or it can cause the whole family to break up, so when you find the above symptoms, you must go to the regular hospital as soon as possible, so as to avoid further development of the disease to cause more trouble to themselves.