The main cause of acute nephritis is related to streptococcal infections. Many patients with acute nephritis often have a history of infections in the throat, upper respiratory tract, or skin before the onset of the disease. Therefore, once acute nephritis occurs, patients often exhibit hematuria, which can be either gross hematuria or microscopic hematuria. Severe cases of acute nephritis may also show swelling of the eyelids and face, as well as the presence of mild to moderate urinary protein. In addition, some severe cases of acute nephritis also show elevated blood pressure, decreased renal function, and overall poor outcomes from acute nephritis. Currently, there are no specific treatments available; the main approach is bed rest and symptomatic treatment. For example, diuretics can be used if there is edema, and antihypertensive drugs can be used if there is a need to lower blood pressure. If an infection still exists, antibiotics are used for treatment. With proper and standardized treatment, the vast majority of acute nephritis cases can be completely cured without recurrence.