Urine albumin is very helpful in determining the severity and efficacy of kidney disease as well as judging the prognosis. Urine microalbumin is a very sensitive test. If urine microalbumin increases by tens, the urine routine can still be normal. Usually normal people will be within the normal range and will not exceed the limit. If the kidneys are damaged, urine albumin will increase, and the degree of elevation often reflects the degree of kidney damage, reflecting the glomerular damage of the kidneys. When there is a problem with the glomerulus, the protein in the urine will increase, and after the increase, it can be detected by the urine protein sensitive indicator. So sometimes to determine whether the kidney disease has been fully recovered, sometimes the protein is negative and the doctor will then measure the urine microalbumin. If the urine microalbumin is also within the normal range, it often indicates that the kidney disease has been completely recovered. So urine albumin is very helpful to judge the severity of kidney disease, to judge the efficacy of treatment and to judge the prognosis. However, because it is very sensitive, sometimes it may exceed the standard a little, but it is not recommended if the patient is completely seeking for its normal. Because that would require a lot of medication, and the side effects would be too great with long-term medication. So urine microalbumin is a very sensitive indicator to determine the kidney damage, but in terms of treatment, it may not always be referred to by doctors.