Prostatitis is divided into four types: Type I: The equivalent of ABP in the traditional classification, with an acute onset of febrile illness, persistent and marked lower urinary tract infection, elevated white blood cell count in the urine, and positive bacterial cultures in the blood or/and urine. Type II: Equivalent to CBP in the traditional classification method. accounts for about 5-8% of chronic prostatitis. There are recurrent lower urinary tract infections lasting more than 3 months, elevated white blood cell counts in EPS/semen/VB3, and positive bacterial culture results. Type III: Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS), equivalent to CNP and PD in the traditional classification method, is the most common type of prostatitis, accounting for about 90% or more of chronic prostatitis. The main manifestation is long-term, recurrent pain or discomfort in the pelvic region lasting more than 3 months, which can be accompanied by varying degrees of urinary symptoms and sexual dysfunction, seriously affecting the patient’s quality of life; negative EPS/semen/VB3 bacterial culture results. According to the results of routine EPS/semen/VB3 microscopy, the type can be subdivided into two subtypes, IIIA (inflammatory CPPS) and IIIB (non-inflammatory CPPS): type IIIA patients have an elevated number of leukocytes in EPS/semen/VB3; type IIIB patients have leukocytes in EPS/semen/VB3 in the normal range. The two subtypes IIIA and IIIB each account for about 50% of the cases. Type IV: Asymptomatic prostatitis (AIP). There are no subjective symptoms and evidence of inflammation is found only on examination of the prostate (EPS, semen, prostate tissue biopsy and pathology of prostatectomy specimens, etc.).