Prostatic hyperplasia usually does not cause proteinuria, prostatic hyperplasia is mostly manifested as frequent urination, dysuria, proteinuria is mostly seen in kidney diseases such as acute glomerulonephritis. Prostatic hyperplasia is common in middle-aged and elderly men, often manifested as frequent urination, increased nocturia, difficulty urinating, dysuria and other symptoms, usually does not cause proteinuria. If combined with infection or stones, there can be obvious urinary frequency, urgency, urinary pain, if there is mucosal blood vessel rupture, there may be painless hematuria. Proteinuria is most commonly seen in renal diseases such as acute tubular nephritis, diabetic nephropathy, nephrotic syndrome, interstitial nephritis, but also in hematologic disorders such as hemolytic anemia and multiple myeloma. Diseases of the urinary tract below the kidneys such as cystitis, urethritis, and vaginal secretions mixed in the urine can also cause protein to appear in the urine test, but it is called pseudoproteinuria. It is recommended that patients with proteinuria go to regular hospitals for timely consultation and treatment, and strive for early recovery.