The short version
The prostate is a walnut-sized gland below the bladder that makes part of the fluid in semen. Most men will have a prostate problem at some point, and most of those problems are not cancer. Three conditions account for nearly all of them, and they are easy to confuse because they share urinary symptoms.
| Condition | Who gets it | Main symptoms | Usually managed with |
|---|---|---|---|
| Enlarged prostate (BPH) | Rare under 40; common after 50 | Weak stream, frequent urination, getting up at night | Lifestyle changes, medicines, or a procedure |
| Prostatitis | Men of any adult age | Pelvic or genital pain, painful urination, sometimes fever | Depends on the type: antibiotics, pain relief, pelvic floor work |
| Prostate cancer | Risk rises with age | Often none early on | Active surveillance, surgery, radiation, or other treatment |
Urinary symptoms alone cannot tell these apart, so they are worth raising with a doctor rather than guessing. See when to see a doctor for the ones that need prompt attention.
Enlarged prostate (BPH)
Benign prostatic hyperplasia means the prostate has grown larger without being cancer. As it grows it can squeeze the urethra, the tube that carries urine out of the bladder. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) reports that about 5–6% of men aged 40–64 and 29–33% of men 65 and older have it. It rarely causes symptoms before 40.
Symptoms
- Trouble starting to urinate, or a weak or interrupted stream
- Dribbling at the end, or the feeling the bladder has not emptied
- Needing to go often or urgently, including several times a night
Treatment options
Mild symptoms may only need watching, with a yearly checkup and habits such as limiting fluids before bed and cutting back on alcohol and caffeine. When symptoms are bothersome, the American Urological Association (AUA) BPH guideline describes these medicine choices:
| Option | How it works | Worth knowing |
|---|---|---|
| Alpha blockers (e.g. tamsulosin, alfuzosin) | Relax muscle at the bladder neck and prostate | Work within days to weeks. Can cause dizziness or changes in ejaculation. Tell your eye surgeon you take one before cataract surgery, because of a risk called floppy iris syndrome. |
| 5-alpha reductase inhibitors (finasteride, dutasteride) | Shrink the prostate over time | For men with a clearly enlarged prostate. Slower to work. Sexual side effects are possible, so review them with your prescriber. They also lower PSA (see below). |
| Daily low-dose tadalafil (5 mg) | An ED medicine that also relaxes prostate and bladder muscle | An option whether or not you also have ED. See our ED guide and its safety page for interactions. |
| Combinations | Alpha blocker plus a 5-alpha reductase inhibitor, or (per the 2024 guideline amendment) alpha blocker plus low-dose tadalafil | The first combination is recommended for men with a demonstrably enlarged prostate. |
If medicines are not enough, or if complications develop, NIDDK lists minimally invasive procedures (such as water vapor therapy or a prostatic urethral lift) and surgery. Complications of untreated BPH can include urinary retention, bladder stones, urinary tract infections, and kidney problems, which is one reason not to ignore symptoms.
Which option fits depends on your symptoms, prostate size, other medicines, and goals, including whether you plan to have children. Don't start, stop, or change a medicine without your prescriber.
Prostatitis
Prostatitis means inflammation of the prostate, and it is not one condition. NIDDK describes four types:
- Acute bacterial prostatitis comes on suddenly with fever, chills, painful urination, and pelvic or back pain, and can block urine flow. It needs prompt medical care and antibiotics, usually for at least two weeks.
- Chronic bacterial prostatitis looks like a milder, longer version (three months or more), often after a urinary infection. It needs a longer antibiotic course.
- Chronic prostatitis / chronic pelvic pain syndrome is the most common type and the least understood. Pain or discomfort lasts three months or more, in the area between the scrotum and anus, the lower belly, the penis, or the lower back, and may be worse during or after ejaculation. The cause is unknown. Treatment aims to ease pain and inflammation and can include anti-inflammatory or alpha-blocker medicines, pelvic floor exercises, heat, and relaxation techniques.
- Asymptomatic inflammatory prostatitis causes no symptoms, is usually found by accident during tests for something else, and typically needs no treatment.
Because similar symptoms can also come from other conditions, including prostate cancer, NIDDK advises anyone with prostatitis symptoms to see a health care provider.
PSA testing
PSA (prostate-specific antigen) is a protein made by the prostate, measured with a blood test. A higher level can be a sign of cancer, but BPH, prostatitis, a urinary infection, and some procedures can raise it too. A single number is a prompt for more questions, not a diagnosis. Our cancer screening guide covers who should consider PSA screening, at what age, and the trade-offs, including what the USPSTF and AUA recommend.
Medicines and PSA
Finasteride and dutasteride lower PSA, roughly by half after several months of use. A reading taken while on one of these medicines needs to be interpreted with that in mind, so tell any doctor who orders a PSA test if you take one, including finasteride taken for hair loss. Testosterone therapy can also raise PSA; see PSA on TRT.
Prostate cancer and active surveillance
Prostate cancer is the most common cancer in American men, but many cases grow slowly. For low-risk disease, the usual approach is now active surveillance: monitoring with repeat PSA tests, imaging, and sometimes repeat biopsies, and treating only if the cancer changes.
A study in the journal Cancer, listed on October 26, 2026, analyzed national registry and Veterans Affairs data for 2010 to 2024. Among men diagnosed with low-risk prostate cancer, the share who had neither radiation nor surgery rose from 33.6% to 83.4% in the national registry data and from 51.6% to 96.3% in the VA data, which the authors describe as a nationwide shift toward active surveillance. It shows what happened across groups of patients, not whether any one man's choice was right. See our October 26 briefing.
If you are diagnosed, ask whether your cancer is low risk, whether active surveillance is an option, and what monitoring it would involve. Treatment decisions belong with a urologist or oncologist who has your results.
Testosterone therapy and the prostate
Testosterone therapy is not thought to cause prostate cancer, but it can raise PSA and can make an existing cancer grow, which is why guidelines call for a PSA and prostate check before starting and follow-up testing after. If you already have urinary symptoms from BPH, say so before starting therapy so the plan accounts for it. Our TRT guide and bloodwork schedule explain the monitoring to expect, and the provider directory shows which companies include it.
When to see a doctor
Get care right away for any of these:
- !You cannot urinate at all.
- !Painful, frequent urination with fever and chills.
- !Blood in your urine or semen.
- !Severe pain in the lower belly or pelvis.
Make a regular appointment for a weak stream, getting up several times a night, a feeling that the bladder does not empty, or pelvic pain lasting weeks. Bring a list of your medicines, since some cold and allergy products and some prescriptions can worsen urinary symptoms.
Sources
- National Institute of Diabetes and Digestive and Kidney Diseases. Prostate enlargement (benign prostatic hyperplasia).
- National Institute of Diabetes and Digestive and Kidney Diseases. Prostatitis: inflammation of the prostate.
- American Urological Association. Management of lower urinary tract symptoms attributed to benign prostatic hyperplasia: AUA guideline (2023, amended 2024).
- Monda SM, et al. Population-level diagnostic and radiation treatment trends of low-risk prostate cancer. Cancer. 2026;132(21):e70603. PubMed