Prostatitis does not usually cause elevated urinary beta-aminogalactosidase (NAG). NAG is widely present in the lysosomes of various tissues, and is particularly abundant in the epithelial cells of the proximal renal tubules, which is one of the most sensitive indicators of renal tubular function damage, and the more severe the renal damage, the higher the value. Elevated NAG mainly reflects renal tubular injury, which is seen in ischemic poisoning-induced tubular necrosis, interstitial nephritis, chronic glomerulonephritis, nephrotic syndrome, and after renal transplantation. Especially acute injury and active lesions are more sensitive, mainly used for early kidney injury monitoring and condition observation. Prostatitis generally does not cause NAG elevation. If NAG elevation is found, it is necessary to look for renal problems, which can be combined with routine urinalysis, renal function tests and renal imaging to assist in diagnosis. After clarifying the cause, targeted treatment will be carried out under the guidance of the doctor.