Prostate fluid routine examination checks what

Patient's question:

Please ask: Is a routine prostatic fluid examination using urethral secretions, or something else? Thank you.
First follow-up question: The requirement is to collect prostatic fluid using the rectal finger palpation massage method, place it directly on a glass slide, cover it with a cover slip, and send it for testing immediately to avoid drying.
That means the doctor will take the sample? I don’t know how to collect the prostatic fluid using the rectal finger palpation massage method—is it the doctor who takes the sample? It’s not squeezing out urethral secretions for testing (if that’s the case, what if there’s none or very little after squeezing—?).

Doctor's answer:

1. Symptom Examination: The diagnosis is based on the incidental discovery of asymptomatic bacteriuria. Most patients have varying degrees of bladder irritation symptoms and discomfort or pain in the lumbosacral region or perineum. Chills and fever are rare; if present, they suggest an acute exacerbation of chronic prostatitis. Muscle pain and joint pain may occasionally occur.
2. Digital Rectal Examination: The prostate appears full, enlarged, soft in texture, and mildly tender to palpation. In cases with longer duration of illness, the prostate may shrink, become harder, and have an uneven texture with small hard nodules. Prostatic massage is also performed to obtain prostatic fluid for routine examination.
3. Ultrasound Examination: The ultrasound shows unclear and disorganized prostate tissue structure, which may suggest prostatitis.
4. Prostatic Fluid Examination: If more than 10 white blood cells are observed per high-power field under the microscope in prostatic fluid, and the amount of lecithin corpuscles is reduced, it can be diagnosed as prostatitis. If bacterial culture is performed simultaneously, a definitive diagnosis and classification of chronic prostatitis can be made. If the bacterial culture result of prostatic fluid is positive, it indicates chronic bacterial prostatitis; otherwise, it is chronic non-bacterial prostatitis.