You are here: Urology Textbook > Prostate > Prostatitis > Definition
Definition of Prostatitis: NIH Classification
Definitions and classification of prostatitis according to the criteria of the National Institutes of Health:
Category I: Acute Bacterial Prostatitis
Acute bacterial prostatitis with sudden onset of fever, perineal and suprapubic pain, voiding symptoms, and bacteria detected in the urine.
Category II: Chronic Bacterial Prostatitis
Chronic bacterial prostatitis lasting more than three months, with recurrent detection of bacteria in the urine or expressed prostatic secretions.
Category III: Chronic Pelvic Pain Syndrome
Chronic pelvic pain syndrome (CPPS), characterized by pelvic pain lasting more than three months without identification of a pathogen by standard microbiological methods.
Category IIIA: Inflammatory CPPS
Inflammatory CPPS: chronic pelvic pain syndrome with evidence of prostatic inflammation (leukocytospermia or inflammatory cells in expressed prostatic secretions) but negative cultures.
Category IIIB: Noninflammatory CPPS
Noninflammatory CPPS: chronic pelvic pain syndrome without evidence of prostatic inflammation (no leukocytospermia or inflammatory cells in expressed prostatic secretions) and with negative cultures.
Category IV: Asymptomatic Inflammatory Prostatitis
Asymptomatic inflammatory prostatitis: evidence of prostatic inflammation (leukocytospermia, inflammatory cells in expressed prostatic secretions, or histologic findings in prostate tissue) without clinical symptoms.
| Prostatic cysts | Index | Bacterial prostatitis |
Index: 1–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
References
Krieger JN, Nyberg L Jr, Nickel JC. NIH consensus definition and classification of prostatitis. JAMA. 1999;282(3):236–237.
Deutsche Version: NIH Klassifikation und Definitionen der Prostatitis
Urology-Textbook.com – Choose the Ad-Free, Professional Resource
This website is designed for physicians and medical professionals. It presents diseases of the genital organs through detailed text and images. Some content may not be suitable for children or sensitive readers. Many illustrations are available exclusively to Steady members. Are you a physician and interested in supporting this project? Join Steady to unlock full access to all images and enjoy an ad-free experience. Try it free for 7 days—no obligation.
New release: The first edition of the Urology Textbook as an e-book—ideal for offline reading and quick reference. With over 1300 pages and hundreds of illustrations, it’s the perfect companion for residents and medical students. After your 7-day trial has ended, you will receive a download link for your exclusive e-book.