Chronic Prostatitis With No Infection: What CP/CPPS Actually Is
If you've had pain in your pelvis, perineum or testicles for months, been told it's prostatitis, taken a course or two of antibiotics and still have the pain, you're far from alone. Most chronic prostatitis isn't caused by an infection at all. Its full name is chronic prostatitis/chronic pelvic pain syndrome, usually shortened to CP/CPPS.
Four kinds of prostatitis, and only two involve bacteria
In 1999 the US National Institutes of Health (NIH) set out a classification that urologists still use. It sorts prostatitis into four categories:
- Category I, acute bacterial prostatitis: a sudden infection, often with fever, that needs urgent antibiotic treatment.
- Category II, chronic bacterial prostatitis: urinary infections that keep coming back because the same bacteria linger in the prostate.
- Category III, CP/CPPS: pelvic pain for at least three of the past six months with no infection found. It's split into IIIA, where white blood cells show up in prostate fluid, and IIIB, where they don't.
- Category IV, inflammation without symptoms: found by chance during tests for something else.
Category III is by far the most common, accounting for over 90 percent of men diagnosed with chronic prostatitis. Studies estimate that somewhere between 2 and 10 percent of men have prostatitis-like symptoms at some point in their lives.
What CP/CPPS feels like
The main symptom is pain, and it can turn up in more places than people expect:
- the perineum, between the scrotum and the anus
- the testicles, the tip of the penis, or the area above the pubic bone
- pain or burning when urinating
- pain during or after ejaculation
Many people also have urinary symptoms, such as feeling the bladder hasn't fully emptied or needing to go again soon after. Symptoms tend to come and go, with flares that can last days or weeks. Because it's long term and unpredictable, CP/CPPS often affects sleep, work, relationships and mood. That's part of living with the condition, not a separate failing.
Why antibiotics so often don't help
"Prostatitis" sounds like an infection, so antibiotics are often the first thing prescribed. For category III there's usually nothing for them to treat. In a well known trial published in the Annals of Internal Medicine in 2004 (Alexander and colleagues), men with CP/CPPS took ciprofloxacin, tamsulosin, both, or a placebo for six weeks. None of the treatments improved symptoms significantly more than the placebo did.
That doesn't mean antibiotics are never right. If a urine or prostate fluid test finds bacteria, that points to category II, which is treated differently. But if tests come back clear and repeated courses haven't helped, it's reasonable to ask your doctor whether CP/CPPS is the better explanation.
What's thought to be going on instead
There's no single cause. Researchers increasingly see CP/CPPS as a set of overlapping problems that differ from person to person. Common threads include tight, tender pelvic floor muscles, nerves that have become more sensitive (the central sensitization we've written about in why pelvic pain often shows up with fibromyalgia and ME/CFS), the bladder, and the way long-term stress affects pain.
Because it varies so much, urologists Daniel Shoskes and Curtis Nickel proposed the UPOINT system in 2009. It looks at six areas, Urinary, Psychosocial, Organ specific, Infection, Neurologic or systemic, and Tenderness of muscles, and matches treatment to the areas that apply to you rather than giving everyone the same thing. In practice treatment often combines several approaches, for example medication for urinary symptoms, pelvic floor physiotherapy, and support with sleep, stress or mood.
What helps people make progress
- The right label. Knowing it's CP/CPPS rather than an infection opens up treatments aimed at the actual problem.
- Tracking over weeks, not days. Flares make single days misleading. The NIH-CPSI is the standard way to measure real change.
- Knowing your own triggers. Many people notice patterns with long periods of sitting, stress, certain foods or drinks, or cold. They differ between people, so your own record matters more than a general list.
- A record to take to appointments. A few months of symptoms and scores make a urology appointment far more useful than trying to remember how things have been.
Track CP/CPPS the way your urologist would
Cypps logs pelvic pain, urinary symptoms and possible triggers, includes the NIH-CPSI and UPOINT, and puts it all into a report you can take to appointments.
Coming to the App Store soon.
This article is for general information and isn't a substitute for medical advice. Talk to a doctor about your own symptoms, tests and treatment.