Lupus nephritis is a kidney injury caused by the deposition of immune complexes in the kidneys due to systemic lupus erythematosus. For the treatment of lupus nephritis type IV, the main treatment at present is the application of hormones combined with immunosuppressants. The first stage is the remission induction stage, where hormones and immunosuppressants can be applied in high doses. The second stage is the maintenance remission stage, in which the disease is basically controlled and the amount of hormones can be reduced to the maintenance amount, which is very small and has little effect on the body. In addition to hormone and immunosuppressant treatment, you can also take oral Bering capsule to protect the kidney and hydroxychloroquine to regulate the basic immune therapy. Pay attention not to eat spicy and stimulating food, avoid contact with allergic substances, prevent direct exposure to sunlight, eat a low-salt, low-fat, high-quality protein diet to avoid increasing the burden on the kidneys, and regularly go to the hospital to check kidney function, urinary routine and other related indicators.