There are many symptoms of diabetic renal failure, such as oliguria or anuria, edema, anemia, massive proteinuria, azotemia and so on. 1. Oliguria or anuria: when renal failure occurs, glomerular filtration rate decreases, resulting in symptoms of oliguria or anuria. 2. Edema: the body is unable to excrete water and electrolytes normally, thus causing water and sodium retention and other problems, resulting in the symptoms of edema. 3. Anemia: the decrease of erythropoietin secretion may lead to the appearance of renal anemia, which is manifested as yellowish and lack of luster, pale lips and nails, and so on. 4. Massive proteinuria: patients often show massive proteinuria, i.e., urine protein >3.5g/24h. 5. azotemia: due to the decline of renal function, metabolic wastes in the body can not be discharged in a timely manner, retention of urea nitrogen, creatinine, etc. in the blood, which is usually manifested as malaise, vomiting, fatigue, etc.). Symptoms of diabetic renal failure may also have other manifestations such as water-electrolyte disorders, acid-base balance disorders, etc. It is recommended that patients go to regular hospitals, consult with professional doctors, and cooperate with doctors to complete the relevant examinations to avoid blind treatment.