inflammation of the prostate gland that may be of infectious (acute and chronic bacterial prostatitis)  or non-infectious origin (chronic pelvic pain syndrome, or CPPS)

acute bacterial prostatitis

• Acute bacterial infection of prostate; associated with severe symptoms, systemic infection, and acute bacterial urinary tract infection
• Accounts for 5% to 10% of all cases of prostatitis

chronic bacterial prostatitis

• Chronic bacterial infection of prostate; characterized by mild/minimal symptoms and recurrent bacterial urinary tract infections caused by same bacterial strain

chronic prostatitis/chronic pelvic pain syndrome (CPPS)

• Pelvic discomfort/pain, possibly with voiding symptoms, 2 for 3 or more months in absence of uropathogenic bacteria cultured by standard techniques
• Most common type of prostatitis, accounting for majority of cases
• Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is more common than meither acute bacterial or chronic bacterial prostatitis

Demographics

• Common urologic diagnosis in men < 50 years of age
• In men, there is an ∼ 8% lifetime risk of developing prostatitis.
• Bacterial prostatitis (2–5% of cases): most commonly men between 20 and 50 years of age
• Chronic pelvic pain syndrome (90–95% of cases): primarily men between 40 and 60 years of age

Aetiology:

• acute/chronic: Same old UTI: E coli, Kleb, proteus. maybe STI memes (chlam, Gono)
• CPPS: unknown. unusual pathogen, increased tissue pressure, autoimmune, psychosomatic