Proteinuria will lead to an increase in the density of the urine, the surface tension becomes larger will be easy to cause foam, proteinuria is the early manifestation of glomerulonephritis, nephrotic syndrome, need to be through the 24 hours of creatinine clearance, urine protein quantification, urine osmolality, urine micro-protein or renal puncture biopsy, to determine the severity of lesions and then target the choice of drugs. If the proteinuria is caused by relatively mild renal lesions, choose Jinshuibao capsule, Bai Ling capsule, continuous treatment for about 3 months proteinuria can slowly disappear, and the urine foamy situation can also be relieved. If it is more serious kidney disease or glomerulonephritis, you need to use immunosuppressants, such as prednisone tablets, tretinoin tablets, continuous treatment for about 0.5-1 years to effectively eliminate the protein in the urine.