Patient's question:
How could the decline in microalbumin be caused by prostatitis leading to prostatic fluid mixing with urine? The microalbumin standard is 20 mg/L, with one test showing 21, another 43, one quantification showing 149 mg/DU, and another 108 mg/DU (under the premise of prostatitis). Is the condition of prostatic fluid mixing with urine occasional or persistent? I have symptoms of prostatitis, with unconfirmed frequent urination (10 times a day), urine splitting, and nocturia (started this year). Sometimes I have very little urine output. Now I don't know if it's nephritis or prostatitis causing it? Does this have any relevance?Doctor's answer:
Albumin is only present in the plasma. When blood flows through the glomerulus, due to the filtration function of the glomerular basement membrane, albumin cannot be filtered into the original urine. The prostate cannot produce or excrete albumin, so the presence of trace albumin in the urine can only be attributed to kidney issues. You have already undergone multiple re-examinations, and it is indeed not qualified, but only the trace albumin is clearly, while the occult blood is merely subtle. You may not need to worry about it for now. In clinical diagnosis, some cases with occult blood and protein positivity often turn out to be the same after further tests, unless a kidney biopsy is performed.