Renal failure is a relatively common kidney disease, this disease mainly refers to the patient’s kidney damage caused by renal failure, and chronic renal failure is a common type of this disease, the patient suffers from this disease will appear some obvious symptoms, if the patient can be more understanding of these symptoms, it will help the future timely treatment. What are the symptoms of chronic renal failure? 1, patients suffering from chronic renal failure will appear after the digestive system symptoms, this symptom is mainly manifested in the patient nausea and vomiting, diarrhea. Tongue inflammation and oral mucous membrane ulceration and other symptoms, serious patients will also have symptoms of hemorrhage in the digestive tract, this symptom is also one of the common symptoms of this disease. 2, patients with chronic renal failure will also have neurological symptoms, this symptom is mainly manifested as mental depression, fatigue, dizziness, headache and memory loss and other symptoms, serious patients will also have muscle tremors, convulsions and numbness of the limbs and other symptoms occur, and even the patient will also have the symptoms of coma. 3, patients with chronic renal failure will also have cardiovascular system symptoms, this symptom is mainly manifested in patients with hypertension, arrhythmia, heart failure and myocardial damage and other symptoms, serious patients may also have pericarditis and vascular sclerosis and other symptoms. 4, patients with chronic renal failure will also have symptoms of the cardiovascular system, this symptom is mainly manifested in patients with severe anemia, this symptom is usually found in the late stage of chronic renal failure, most of the patients in the late stage of the patient will have vomiting blood, blood in the stool, hematuria, and the symptoms of excessive menstruation. The above content is mainly for the introduction of chronic renal failure symptoms, patients have a certain understanding of these symptoms, in the daily life should pay particular attention, once these symptoms appear, then the patient is likely to be suffering from chronic renal failure, this time the patient should be timely treatment, so as to avoid life-threatening hazards occur.