Urine protein 3+ indicates a high amount of protein in the urine, often suggesting kidney disease. When the result shows urine 3+, it also indirectly indicates heavy damage to the glomerular filtration barrier, commonly seen in nephrotic syndrome and acute glomerulonephritis as well as chronic glomerulonephritis. 1. Patients often have edema and hyperlipidemia. Treatment needs to be combined with the etiology and pathological type of nephrotic syndrome. Most patients need glucocorticoids or glucocorticoids with cyclophosphamide treatment. In addition, it is necessary to limit the intake of sodium and water, in addition to appropriate vitamin supplementation, as well as regular testing of blood calcium levels; if the blood albumin is lower than 20g/L, anticoagulation therapy can be given; 2, acute glomerulonephritis: acute glomerulonephritis is a disease characterized by hematuria with high proteinuria, hypertension, edema, etc. The onset of the disease is related to infection, treatment requires antibiotic anti-infection treatment, life The treatment needs to be antibiotic anti-infection treatment, life can eat high quality protein, control water and sodium retention, for severe cases, dialysis treatment if necessary; 3, chronic glomerulonephritis: chronic glomerulonephritis is often clinically characterized by hematuria, proteinuria, edema, progressive renal impairment, treatment needs to be given angiotensin converting enzyme inhibitors and angiotensin II receptor antagonists to improve renal hemodynamic and reduce glomerular hypertension. In addition, the treatment plan needs to be decided according to the etiology and pathological type of nephritis of the patient, and most of them will apply immunosuppressive therapy such as glucocorticoids. There may be other causes of proteinuria, such as hematologic diseases, tumor-related, liver diseases and immune system diseases related, so it is important to have regular medical checkups, detect and give treatment early, prevent infections and other complications, eat a reasonable nutritious diet and avoid overwork.