The early stage of uremia includes digestive system symptoms, cardiovascular system symptoms, blood system symptoms, respiratory system symptoms and so on. 1. Digestive system symptoms: loss of appetite, nausea and vomiting, and the smell of urine in the mouth are the most common symptoms in the early stage of uremia. 2. Cardiovascular system symptoms: cardiovascular lesions are the most common complications and the most important cause of death, mainly including hypertension, left ventricular hypertrophy, heart failure, uremic cardiomyopathy and so on. 3. Hematological symptoms: mainly renal anemia, bleeding tendency and thrombosis tendency. 4. Respiratory symptoms: shortness of breath, dyspnea, etc. may occur in the early stage. Uremia early patients should go to the hospital in time, under the guidance of professional physicians standardized treatment.