Acute glomerulonephritis is mainly characterized by hematuria, proteinuria, edema, hypertension, and oliguria or acute kidney injury in a small number of patients. 1. Almost all patients have hematuria, which can be microscopic or microscopic hematuria. 2. Most patients will have mild proteinuria, and some patients will have severe proteinuria, which is mainly manifested as increased foam in the urine, which lasts for a long time and does not dissipate. 3. Most patients may have elevated blood pressure, which may be related to sodium retention and blood volume expansion. 4. A small number of patients will experience a decrease in urine output. 5. A small number of patients will have acute kidney injury, but most of them have transient elevation of serum creatinine and urea nitrogen, which can be normalized after treatment. It is recommended that patients with acute glomerulonephritis go to the hospital in time and follow the doctor’s instructions for timely treatment to avoid delays.