The most common pathogens are E. coli, Klebsiella, Proteus mirabilis, Enterobacter, and Staphylococcus aureus. Any fluoroquinolone antibiotic would be a good choice for therapy, however you need to take it for the indicated period of time, 3-4 weeks. Chronic Bacterial prostatitis is defined by recurrent urinary tract infections and persistence of pathogenic bacteria in prostatic fluid. Physical exam is usually normal, however the three part urinalysis shows a high number of white cells on one of the three samples. Chronic bacterial prostatitis is simply a bacterial infection that persists.
Nonbacterial prostatitis is an inflammatory condition of unknown etiology.
The symptoms are similar to those of chronic prostatitis. This group of patients outnumber all other patients with prostatitis. Again the physical exam is unremarkable however on the three part urine test there is not only high numbers of white blood cells, but also lipid laden macrophages. These are cells that are not characteristically seen in the prostate secretions. There may be a chemical irritation as a basis of this disease.