Prevention of nephritis needs to be discussed separately according to acute nephritis and chronic nephritis. Acute glomerulonephritis is usually caused by deposition of antigen-antibody complexes in the glomerular basement membrane after skin or respiratory streptococcal infections, resulting in clinical appearance of proteinuria, hematuria, edema, and hypertension. This condition is mainly to prevent streptococcal infection, and active and effective anti-infection treatment after the infection is detected can effectively prevent nephritis. Most of the causes of chronic glomerulonephritis are not completely clear, mainly an immune response, prevention of various infections, chronic glomerulonephritis also has a great preventive effect. IgA nephropathy in chronic glomerulonephritis is usually co-morbid with infection. Another method of prevention is to pay attention to avoid overexertion, avoid strenuous activities, avoid staying up late, and avoid nephrotoxic drug applications.