Proteinuria may present with increased foam in the urine, cloudy urine, and edema. When the level of protein in the urine is elevated can lead to increased foam in the urine, the foam is mostly fine and lasts for a longer period of time, there may also be cloudy urine and other manifestations. However, some patients may have no obvious symptoms and proteinuria is often found during physical examination. When a large amount of proteinuria, it can lead to hypoproteinemia, which can lead to the appearance of depressed edema. For example, renal edema is most often found in areas of loose tissue, such as the eyelids; sagging areas of the body, such as the ankles and anterior shins; and the sacrococcygeal area when the patient is bedridden for a long period of time. Proteinuria may also have other symptoms, if the patient found proteinuria, it is recommended to go to the regular hospital in a timely manner, improve the examination to determine the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.