Although the chronic prostatitis is the most common infectious disease in the urinary tract in male, it is confusing us to diagnose and treat thoroughly. It is usually diagnosed by careful history, urinalysis, rectal palpation, and wet smear of prostatic secretions. But sometimes these findings are not identical to the true conditions of patients. 53 patients suspected of chronic prostatitis were studied by cultures of prostatic secretion and semen. And they compared to each other. The results were as follows:
1. Semen cultures, in 10 cases of the control group, showed positive findings in two cases. One was staphylococcus epidermis and the other was Gram(+) bacillococcus, but their colony counts were less than 100.
2. The positive findings on prostatic secretion culture were 37 cases (69. 8%) and on semen culture were 28 cases(52. 9%)
3. The etiologic organisms of chronic prostatitis by semen and prostatic secretion cultures revealed staphylococcus epidermis, staphylococcus aureus, streptococcus, Gram(-) diplococcus and Gram(+) bacillococcus in order of frequency.
4. Pathologic findings on prostatic biopsy according to different etiologic organisms revealed nothing remarkable except nonspecific chronic inflammation in each group.
5. Although there is no evidence the semen culture is superior to the prostatic secretion culture for diagnosis of the chronic prostatitis, it is more useful in the patient who may have an acute exacervation of chronic prostatitis, the patient whose prostatic juice can`t be obtained by massage, and the patient who can`t endure pain because of rectal pathology such as anal fissure or severe hemorrhoids.
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