Chronic renal failure is one of the common kidney diseases in the clinic, usually, it is found when people are in the kidney function test, which is the most direct cause of our uremia, so the symptoms of the disease appear, it should be timely diagnosed and treated. So what are the common symptoms of chronic renal failure? 1, digestive system: performance of anorexia, nausea, vomiting, diarrhea, mouth with the smell of urine, gastrointestinal bleeding, etc. Modify this paragraph 2, the mental nervous system: performance of mental depression, dizziness, headache, memory loss, insomnia, numbness and itchy limbs “restless legs” syndrome, and may have abnormal sense of smell, urination difficulties, etc., serious cases can be coma. 3, cardiovascular system: often hypertension, heart failure, palpitations, shortness of breath, inability to lie down, cardiac arrhythmia, serious cases may appear pericardial effusion, or even pericardial tamponade. 4, hematopoietic system: manifest severe anemia, late stage may have the tendency of bleeding from various organs. 5, the whistling system: the whistling gas has the smell of urine, may appear metabolic acidosis of the whistling. 6, skin manifestations: dry, flaky, lusterless, and may have melanin deposition resulting in darker skin, itchy skin, can also have edema, skin infections, etc. 7, skeletal system: can appear renal bone disease, showing bone and joint pain. 8.Low immune system function: It is easy to develop various infections, such as bronchitis, pneumonia, pleurisy, skin boils, urinary tract infections, etc. 9, metabolic disorders: water, electrolyte and acid-base balance imbalance, can lead to edema or dehydration, hand and foot convulsions. A comprehensive understanding of the symptoms of common kidney failure will help us to master the changes in our condition and avoid the development of the disease to an advanced stage, bringing us a threat to life.