The common symptoms of nephritis in the elderly include hematuria, proteinuria, edema, hypertension, and if there is abnormal kidney function, it may be accompanied by loss of appetite, nausea, vomiting, etc. Nephritis is relatively common in clinical practice, and the more common symptom is hematuria. Of course, naked eye hematuria is relatively rare, most cases are microscopic hematuria, that is, red cells can be seen under the microscope. Another symptom is proteinuria, which is usually detected in routine urination, but there are also clear clinical signs that suggest urinary protein, such as increased foam in the urine. The next symptom is edema, which can be edema of both lower extremities after activity or edema of the eyelids after waking up from sleep. Hypertension, on the other hand, is easily overlooked in the elderly because it is difficult to think of nephritis as the cause. If nephritis gradually develops if kidney failure occurs, creatinine and urea are significantly elevated and toxins accumulate in the body, the patient will show a loss of appetite, not wanting to eat anything he sees, and after eating, he will also experience nausea and vomiting.