Urine foam does not directly indicate any harm, this may be a physiological phenomenon caused by diet, may also be caused by proteinuria, should be timely consultation to identify the cause of treatment. 1. Due to a large amount of eating protein, eating fat, or drinking a lot of beer, as well as eating too much alkaline food, may cause increased urine foam, this is a normal phenomenon, generally adjust the diet. 2. Proteinuria is caused by normal proteins in the blood passing through the damaged kidneys and being excreted into the urine. Foamy urine is the most common one, mainly manifested as a layer of white foam after urination, and will not disappear. Prolonged proteinuria can cause hypoproteinemia, which can lead to edema, hyperlipidemia and thromboembolism. Persistent foamy urine and dietary adjustments are ineffective, should consult a doctor to determine the cause of the disease and give targeted treatment.