The classic Meares-Stamey test is a 3-glass test.
Three separate urine samples are collected and examined during this test. The last sample is taken after prostatic massage.
Anyway, the Meares-Stamey test is difficult to perform. The prostatic secretions are not easy to obtain, and interpreting test results is controversial. Sometimes disease is present but not detected. For these reasons, doctors have proposed another test that is simpler to perform, more practical, and much less expensive.
This test is called : Premassage and postmassage test (PPMT)
In this test, urine samples are obtained before (Premassage) and after (postmassage) prostatic massage and are sent for microscopic exam and culture.
If both bacteria and white blood cells are present in your postmassage sample, then You will be diagnosed with chronic bacterial prostatitis.
In healthy men, the number of white blood cells in prostatic fluid could be as high for up to 2 days after ejaculation.