The National Institutes of Health (NIH) proposed a new classification of prostatitis in 1998.
Type I: Acute bacterial prostatitis with systemic symptoms such as chills and fever, with lower urinary tract irritation or anal swelling. Pang Jianping, Men’s Department, Erdos Central Hospital
Type II: Chronic bacterial prostatitis with a clear history of lower urinary tract infection, recurrent episodes after treatment, leukocytes and bacteria in prostate massage fluid (Eps) or post-massage urine (V3).
Type III: Chronic non-bacterial prostatitis/chronic pelvic pain syndrome with pain and discomfort in the perineum and pelvis with symptoms such as urinary irritation or obstruction, affecting sexual function and quality of life, but without definite evidence of bacterial infection. It can be further classified into two subtypes according to the white blood cell count in Eps/V3.
Type IIIa: inflammatory chronic pelvic pain syndrome with a high number of leukocytes in the Eps/V3
Type IIIb: Non-inflammatory chronic pelvic pain syndrome with a “normal” range of leukocyte counts in the Eps/V3.
Type IV: Asymptomatic chronic prostatitis with no obvious clinical symptoms, but a high number of white blood cells in Eps/V3 or inflammatory changes in the prostate tissue biopsy.
According to the NIH prostatitis classification criteria, type II chronic bacterial prostatitis and type III chronic non-bacterial prostatitis/chronic pelvic pain syndrome clearly belong to the category of chronic prostatitis, accounting for about 80% of clinical prostatitis. The type IV asymptomatic chronic prostatitis has been revealed to have tissue inflammatory pathological changes from the pathological point of view. The most important thing is that it is not only a good idea to have a good understanding of the situation, but also a good idea to have a good understanding of the situation.