Positive urine albumin to urine creatinine ratio in children may be caused by chronic nephritis, nephrotic syndrome, renal failure, etc., which can be treated by medication, surgery and other treatments after the cause of the disease is clarified under the guidance of the doctor. 1. Chronic nephritis: when children have chronic nephritis, they usually have symptoms such as foamy urine, hematuria, and positive urine albumin to creatinine ratio, etc. They can be treated with hormones and/or immunosuppressants such as prednisone and cyclosporine after the cause of the disease is clarified according to the doctor’s instruction. 2. Nephrotic syndrome: When children suffer from nephrotic syndrome, they may have symptoms such as eyelid edema, decreased urine output, etc., and urine tests usually show a positive ratio of urine albumin to urine creatinine. After following the doctor’s instructions to clarify the cause of the disease, take immunosuppressants such as cyclosporine, diuretics such as furosemide and other drugs, or dialysis and other treatments. 3. Kidney failure: When children suffer from kidney failure, they usually have symptoms such as oliguria, acidosis, blood in the urine, anemia, etc. The ratio of urine albumin to urine creatinine may be positive. After clarifying the cause of the disease, take diuretics such as furosemide, correct acidosis such as sodium bicarbonate and other medications as prescribed by the doctor, and if necessary, treat the disease with dialysis or kidney transplantation. When a child has a positive urine albumin to creatinine ratio, parents are advised to take their children to the hospital in a timely manner, to identify the cause of the disease under the guidance of the doctor, and to follow the doctor’s instructions for standardized treatment.