How long does it take for the foam to go away before it’s not proteinuria?

Urine foam such as a few seconds to a minute or two to disappear, usually more is not proteinuria, but the specific is not proteinuria should also be based on urine routine and urine microalbumin test results to decide.
If the foam in the urine lasts for a few seconds to a minute or two, then it is generally not proteinuria, such as the foam in the urine will not disappear for a short period of time, it may take more than ten minutes or even longer to disappear, usually proteinuria.
There is also a big difference between the two in terms of traits, proteinuria is usually very fine like the foam of beer, non-proteinuria foamy urine is usually a large loose foam, this foamy urine may be due to strenuous exercise, diet and so on, it is temporary.
When foam appears in the urine, it is recommended that the patient go to the hospital in time, under the guidance of the doctor to improve the relevant examination, such as pathological proteinuria should be actively treated to avoid the development of the disease.