How long it takes to recover from nephritis mainly depends on the cause, condition and treatment effect. For example, acute nephritis is a self-limiting disease, usually 2~4 weeks to recover; acute nephritis, if the effect is not effective or the condition is acute and serious, will soon enter the uremia stage, and may not be able to recover; and chronic nephritis can only control the symptoms and delay the progress of the disease, usually can not be recovered. 1. Acute nephritis: clinical characteristics of acute onset, manifested by hematuria, proteinuria, edema and hypertension, may be accompanied by transient renal insufficiency. It is mostly seen in streptococcal infection. This disease is a self-limiting disease, the vast majority of patients in 2~4 weeks, edema subsides, hematuria disappears, blood pressure returns to normal, the disease is cured. However, a few patients may be prolonged and turn into chronic nephritis. 2. Acutely progressive nephritis: on the basis of acute nephritis syndrome, the renal function progresses rapidly, and the pathological type is a group of diseases of crescentic nephritis. Some patients with rapid progression or poor treatment, renal function can not be reversed, at this time can not be restored. 3. Chronic nephritis: proteinuria, hematuria, hypertension and edema as the basic clinical manifestations, the mode of onset varies, the condition is prolonged and slowly progressing, there may be different degrees of renal function impairment, some patients will eventually develop to end-stage renal failure. Recovery is usually impossible. Patients with nephritis are advised to go to regular hospitals in time and receive standardized treatment under the guidance of doctors.