A common belief goes like this: prostate trouble is something that happens to men in their 60s and 70s. So when a 34-year-old feels an ache deep in his pelvis and a burning when he urinates, “prostate” is usually the last word on his mind.
Prostatitis and an enlarged prostate are two different conditions. Prostatitis is inflammation or infection of the prostate and often causes pain, sometimes with fever, at any adult age. An enlarged prostate (BPH) is non-cancerous growth that mostly causes a weak stream and frequent urination in older men, usually without pain. Both can make urinating harder, which is why they get confused.
Neither one is a personal failing or something to be embarrassed about. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) calls prostatitis the most common urinary tract problem in men younger than 50, and BPH the most common prostate problem in men older than 50. Doctors see both every day.
Prostatitis or BPH: a side-by-side comparison
The table below shows the typical pattern. Real life is messier, and some men have both conditions at once, so treat this as a starting point for a conversation with your doctor, not a diagnosis.
| Prostatitis | Enlarged prostate (BPH) | |
|---|---|---|
| What it is | Inflammation of the prostate, sometimes from a bacterial infection | Non-cancerous growth of the prostate |
| Typical age | Any adult age, including younger men | Mostly older men, becoming more common with age |
| Pain | Often: pelvis, groin, lower back, penis, testicles, or the area between the scrotum and anus | Usually none |
| Fever or chills | Possible, especially in acute bacterial prostatitis | Not a feature of BPH itself |
| Urinary symptoms | Burning, urgency, frequent urination, trouble starting | Weak or slow stream, dribbling, frequent urination, waking at night |
| How it starts | Can be sudden (acute) or come and go for months (chronic) | Slowly, over years |
| Pain with ejaculation | Can happen | Not typical |
| Main treatments | Depends on the type: antibiotics for bacterial forms, symptom-focused care for chronic pelvic pain | Watchful waiting, medicines, or procedures |
If BPH sounds more like you, our guide on whether an enlarged prostate can go back to normal covers treatment options in detail. The rest of this page focuses on prostatitis and how it differs.
The four types of prostatitis, in plain words
NIDDK sorts prostatitis into four types. They behave very differently, which is why “prostatitis” alone doesn’t tell you much.
Chronic prostatitis/chronic pelvic pain syndrome
This is the most common type. Men have pelvic or genital pain and often urinary symptoms that last for months, but tests usually don’t find a bacterial infection. Doctors don’t fully understand the cause. Nerves, muscles of the pelvic floor, past infections, and stress may all play a part. Symptoms often come and go.
Acute bacterial prostatitis
This one starts suddenly and can make you feel quite sick. NIDDK lists symptoms such as fever, chills, body aches, pain when urinating, and pain in the genitals or lower back. It is the least common type, but it needs prompt treatment, and it can lead to being unable to urinate.
Chronic bacterial prostatitis
A bacterial infection that keeps coming back. Between flare-ups, symptoms may be mild or absent. Repeated urinary tract infections in a man are a reason to ask about this type.
Asymptomatic inflammatory prostatitis
Inflammation shows up on a test done for another reason, but there are no symptoms. It usually doesn’t need treatment. It can, however, raise PSA, which the National Cancer Institute (NCI) notes when it lists the things besides cancer that push PSA up. Our guide to PSA test results explains what that means for screening.
Pelvic pain in men: where it hurts, and why that matters
Many men with chronic prostatitis spend months describing their pain as “down there” and get nowhere. Being specific helps your doctor. Mayo Clinic lists pain or discomfort in these areas as signs of prostatitis:
- Between the scrotum and the anus (the perineum)
- The lower belly, groin, or lower back
- The penis or testicles
- During or after ejaculation
Pain in these places isn’t always the prostate. Hernias, kidney stones, and muscle strain can feel similar, so the location is a clue, not an answer.
Prostatitis symptom log to bring to your appointment
Chronic prostatitis can be frustrating to pin down because it shifts from week to week. A two-week log turns “it hurts sometimes” into a pattern your doctor can work with. Copy this table into your phone or a notebook and fill one line per day.
| Date | Pain (0 to 10) and where | Urinary symptoms | Fever or chills? | Possible triggers (long sitting, cycling, alcohol, spicy food, stress) | What helped |
|---|---|---|---|---|---|
| Mon | 4, perineum and groin | Burning at first, urgency twice | No | Drove 3 hours, sat all afternoon | Warm shower, short walk |
The trigger column is for your own observations. Different men notice different things, and your doctor can help you decide which patterns matter.
Which situation sounds like yours?
Younger man with pain and burning, no fever
This often fits chronic prostatitis/chronic pelvic pain syndrome, though a urinary tract infection or a sexually transmitted infection can cause similar symptoms. See a primary care doctor or urologist. Expect a urine test and possibly other tests to rule out infection.
Sudden fever, chills, and painful urination
This pattern can mean acute bacterial prostatitis. Don’t wait for a routine appointment. Get seen the same day, at urgent care or your doctor’s office, or go to the emergency room if you feel very ill.
Older man with a slow stream and frequent trips, no pain
This sounds more like BPH. It is still worth a checkup, since a doctor can look at your symptoms, examine the prostate, and decide whether you need treatment or simply monitoring. If nighttime trips are the main problem, read our guide to waking up at night to pee, which covers causes that have nothing to do with the prostate.
Older man with pain and new urinary symptoms
Both conditions are possible, together or apart. Mention every symptom, not only the one that bothers you most.
How doctors tell prostatitis from an enlarged prostate
NIDDK describes several steps a doctor may use. You won’t need all of them.
- Medical history and symptom questions. Your log helps here.
- Physical exam, which may include a digital rectal exam to feel the prostate. A tender, swollen prostate points more toward prostatitis.
- Urine tests to look for infection and blood.
- Blood tests, which can include PSA. Prostatitis can raise PSA, so a high result during a flare is often repeated later.
- Other tests when needed, such as checking how well the bladder empties or imaging.
Questions to ask about your prostate symptoms
- Do you think this is prostatitis, BPH, or something else?
- If it’s prostatitis, which type, and was an infection found?
- If you prescribe antibiotics, how long should I take them, and what should I do if symptoms come back?
- Could pelvic floor muscles be part of my pain, and would pelvic floor physical therapy help?
- Should my PSA be rechecked after this settles?
Prostatitis warning signs that need care today
Call your doctor the same day, or go to urgent care, if you have:
- Fever, chills, or body aches along with painful urination
- Blood in your urine or semen
- Pain that is severe or getting worse quickly
- Nausea or vomiting with urinary symptoms
Call 911 or go to the emergency room if you can’t urinate at all, especially if your lower belly is full and painful. NIDDK lists being unable to pass urine and fever with chills as reasons for urgent care with prostate problems.
A step to take before the day is over
Start the symptom log tonight, even if today was a good day. Note where you felt pain, any burning or urgency, and what you did. Two weeks of entries give your doctor far more to work with than a single description in an exam room, and they help you spot your own triggers.
If waking up to urinate is part of your picture, our guide to peeing at night is the best next read.
