Foamy urine is proteinuria?

Foamy urine is proteinuria need to be analyzed according to the specific circumstances.

If the patient foam urine, and foam more, not easy to dissipate, check the existence of glomerular filtration rate permeability changes, etc., generally belong to proteinuria. However, if the patient holds urine for a long time after urination, urine will be abnormally concentrated, urine can be obviously yellow at this time, and because there is more urine in the bladder, foam urine will appear due to greater impact force after discharge, but it can naturally dissipate after a period of time. At this time, renal function is normal, so it is generally not proteinuria.