The occurrence of proteinuria cannot be observed by our naked eyes, and only through professional examination can we know the occurrence of proteinuria, but even so, there are still some diseases that are easily confused with proteinuria, so below we will introduce these diseases that are easily confused with proteinuria. 1. edema with proteinuria: edema with heavy proteinuria is mostly nephrogenic edema. In addition to nephrogenic edema, mild proteinuria can also be seen in cardiogenic edema. The edema and proteinuria during pregnancy are mostly seen in gestational toxic edema. 2. Pregnancy proteinuria: Generally speaking, the protein in normal urine is very little, not more than 7~10mg/24h, and cannot be detected by ordinary urine routine examination. In fetal urine, when the protein content in the urine increases, it can be detected by ordinary urine routine examination and is called fetal proteinuria. If the urine protein content is ≥3.5g/24h, it is called massive proteinuria. 3. hematuria with proteinuria: renal hematuria refers to hematuria originating from the glomerulus, which is clinically manifested as simple hematuria, or hematuria with proteinuria. If the treatment is not complete, recurrent attacks or mismanagement, the condition cannot be effectively controlled and eventually leads to uremia. 4. Low-molecular proteinuria: Low-molecular proteinuria is caused by damage to renal tubular function, which results in impaired reabsorption of protein filtered through the normal glomerulus. Through the above introduction we know that these diseases easily confused with proteinuria, they will appear the symptoms of proteinuria, but only the accompanying symptoms, the main cause of the disease is not proteinuria, so to treat the treatment is not for proteinuria treatment, this we should be clear.