Prostate exam (PSA, rectal exam and prostate imaging)

A PSA blood test read in context, sometimes with a rectal exam or an ultrasound — what raises PSA, what each guideline says, and what happens after a high result.

Last updated October 2026 · New Dawn Health editorial team

Main test
PSA blood test; other parts confirmed when booking
Radiation
None
Before the test
No ejaculation or vigorous cycling for 2 days
Appointment
30 minutes at iHope Clinic, Taipei

What is a prostate exam?

A prostate exam checks the prostate, a gland that sits below the bladder and surrounds the urethra. Its core is the PSA blood test. A doctor may add a digital rectal exam or a prostate ultrasound.

At New Dawn Health it is the Prostate Exam, a 30-minute appointment at iHope Clinic in Taipei's Xinyi District. Our listing describes a prostate assessment in which the PSA result is read in context rather than alone. It does not yet itemize the other parts. Your coordinator confirms, when you book, whether a rectal exam, an ultrasound and a doctor's review of the result are included.

The parts a prostate check can include.
Part How it is done What it shows
PSA blood test A small blood sample from a vein in the arm The level of prostate-specific antigen, a protein made by normal and cancerous prostate cells
Digital rectal exam (DRE) A doctor feels the prostate with a gloved, lubricated finger Size, lumps and hard areas at the back of the gland
Prostate ultrasound Sound waves, through the lower belly or from a small probe in the rectum The size of the prostate; it can also guide a biopsy needle

In Taiwan, prostate cancer is the third most common cancer in men. Taiwan's Health Promotion Administration reports 9,062 new cases in 2022. It reports 1,897 deaths from prostate cancer in 2024.

Who should consider PSA screening, and who should skip it?

Every guideline body below says the same first thing: talk it through with a doctor, then decide. They differ on when to start and when to stop.

PSA screening guidance side by side (checked 2026-10-18).
Body Average risk Higher risk Older men
USPSTF (US, 2018; update in progress) Ages 55–69: an individual decision after discussing benefits and harms with a clinician (grade C) No separate recommendation; Black men may benefit more, and so may men whose father, brother or son had advanced or fatal prostate cancer Recommends against PSA screening from 70 (grade D)
AUA/SUO (US urologists, 2023; amended 2026) A baseline PSA may be offered at 45–50; regular screening every 2–4 years is offered at 50–69 Screening offered from 40–45 for men of Black ancestry, with an inherited gene change such as BRCA2, or with a strong family history The interval can be personalized, or screening stopped, based on preference, age, PSA level, risk, life expectancy and health
American Cancer Society (2023) An informed decision with a doctor from 50; a PSA below 2.5 ng/mL may need retesting only every 2 years, and 2.5 or higher yearly From 45 for African American men and men whose father or brother was diagnosed before 65; from 40 if more than one such relative Not offered to men without symptoms whose life expectancy is under 10 years
Taiwan Health Promotion Administration (2025) No government PSA screening program; says the evidence is insufficient that PSA testing lowers prostate cancer deaths No separate advice; see a doctor early for urination problems, frequent night-time urination or unexplained bone pain Cites the USPSTF: not recommended from 70

An update to the USPSTF's 2018 statement is in progress. The USPSTF has not replaced it yet, so the 2018 grades still stand.

Who should skip it

  • Men 70 and over, under the USPSTF recommendation.
  • Men with less than about 10 years of life expectancy, under the American Cancer Society guideline.
  • Men who do not want screening. The USPSTF says clinicians should not screen men who do not express a preference for it.
  • Men with symptoms. Trouble urinating, blood in urine or semen, or bone pain call for a doctor's assessment, not a screening package.

What raises PSA besides cancer?

There is no single normal PSA level. A high PSA can come without cancer, and a low PSA can come with it. These are the usual causes of a rise other than cancer:

Harmless causes of a raised PSA, and what to do about each.
Cause Effect on PSA What to do
Enlarged prostate (BPH) Can raise it Ask whether the doctor will weigh PSA against prostate size (PSA density)
Prostate infection or inflammation (prostatitis) Can keep it raised for a month or two Treat it first and test after it has settled
Urinary tract infection Can raise it A urine test checks for infection
Recent prostate biopsy Can keep it raised for a month or two Tell the clinic the date of the biopsy
Recent cystoscopy Can raise it for a short time Tell the clinic about any recent procedure, including a urinary catheter
Ejaculation Raises it for a short time Avoid it for 2 days before the test
Vigorous exercise such as cycling Raises it for a short time Avoid it for 2 days before the test
Testosterone, or medicines that raise testosterone May raise it List them when you book
Age PSA rises slowly with age, even in a normal prostate Some doctors use a higher cutoff for older men and a lower one for younger men

What lowers PSA and can hide a rise

  • Finasteride (sold as Proscar or Propecia) and dutasteride (Avodart) lower PSA. Doctors use a lower cutoff for men taking them.
  • Some dietary-supplement mixtures may mask a high PSA, according to the American Cancer Society.
  • Long-term aspirin, statins or thiazide diuretics may lower PSA; the American Cancer Society says more research is needed.

Is it an enlarged prostate or prostate cancer?

Urinary symptoms have several causes besides cancer. Early prostate cancer usually causes no symptoms at all.

Enlarged prostate, prostatitis and prostate cancer compared.
Condition Typical symptoms Link with PSA and cancer
Enlarged prostate (BPH) Trouble starting or emptying, a weak or interrupted stream, dribbling, urgency, frequency, getting up at night to urinate Not cancer, and it does not raise the risk of prostate cancer. It can raise PSA. It affects 5–6% of men aged 40–64 and 29–33% of men 65 and over.
Prostatitis In the acute bacterial form: fever, chills, body aches and burning when urinating Not cancer. It can keep PSA raised for a month or two.
Early prostate cancer Usually none Found through PSA or a rectal exam; only a biopsy confirms it
More advanced prostate cancer Blood in urine or semen; Taiwan's HPA also lists unexplained bone pain as a reason to see a doctor Needs a doctor's assessment, not screening

Symptoms may not be directly related to the size of the prostate, according to the US National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK).

What do a rectal exam, an ultrasound and an MRI add?

PSA is the first test. The others answer narrower questions, and none of them can diagnose cancer. Only a biopsy, read by a pathologist, does that.

What each prostate test adds, and its limits.
Test What it adds Its limits
Digital rectal exam (DRE) Feels the back of the gland, where cancers often begin. It sometimes finds a cancer when PSA is normal. US urologists advise considering it when PSA is 2 ng/mL or higher. Less effective than PSA. The USPSTF does not recommend it as a screening test, and US urologists say not to use it alone.
Pelvic ultrasound through the belly Shows the bladder, prostate and seminal vesicles, without anything inserted A detailed view of the prostate usually needs the transrectal probe; ultrasound alone cannot diagnose prostate cancer
Transrectal ultrasound (TRUS) Measures prostate volume, which gives PSA density; guides the needles during a biopsy Can miss some cancers; ultrasound alone cannot diagnose prostate cancer
Prostate MRI (multiparametric) Scores suspicious areas from 1 (most likely not cancer) to 5 (very suspicious) on the PI-RADS scale; points the biopsy needle at them Cannot always tell cancer from inflammation or bleeding; a normal MRI does not rule out cancer in a man whose risk is high

How much the DRE adds in screening

The PROBASE trial tested the rectal exam in 50-year-old men. Of 57 men with a suspicious exam, 37 had a biopsy, and 2 had prostate cancer. Both cancers were the lowest grade (Grade Group 1).

Why an MRI may come before a biopsy

US urology guidance allows a prostate MRI before a first biopsy. In the PRECISION trial, 500 men with a suspected cancer and no earlier biopsy were assigned to MRI first or to a standard biopsy:

  • 28% of the MRI group had a scan that did not suggest cancer, and skipped the biopsy.
  • Clinically significant cancer was found in 38% of the MRI group, against 26% with standard biopsy.
  • Clinically insignificant cancer was diagnosed 13 percentage points less often in the MRI group.

A prostate MRI is a dedicated scan of one region. The pelvic part of a full-body MRI is a survey, not this protocol; the pelvis page explains the difference. A single-region MRI can cover the pelvis. Ask your coordinator whether the clinic runs the multiparametric prostate protocol and reports it with PI-RADS before you book it for this purpose.

How do I prepare for a PSA test?

  1. 1
    Weeks before: check for anything that raises PSA
    An infection or inflammation of the prostate, or a prostate biopsy, can keep PSA raised for a month or two. If you had one recently, ask your coordinator whether to test later.
  2. 2
    When you book: list your medicines
    Name finasteride, dutasteride, testosterone and any supplements. Bring earlier PSA results with their dates, so the new value can be compared.
  3. 3
    Two days before: no ejaculation, no hard cycling
    The US National Cancer Institute advises avoiding activities that raise PSA for 2 days before the test. That means no ejaculation and no vigorous exercise such as cycling.
  4. 4
    On the day: keep taking your medicines
    Do not stop a medicine unless a doctor tells you to. Your coordinator confirms whether to fast and what else to bring.

What happens during the appointment?

The parts below apply when they are included in your appointment. Our listing gives the whole visit 30 minutes.

  • Blood draw: a small needle takes blood from a vein in your arm. You may feel a little sting, and it usually takes under five minutes.
  • Rectal exam: you lie on your side or lean over the exam table. You may feel mild discomfort, and it takes a short time. It is usually not painful.
  • Transrectal ultrasound: a probe about the size of a finger goes a short way into the rectum.
  • Pelvic ultrasound through the belly: the probe moves over the lower belly. You may be asked to drink water first to fill your bladder.

None of these uses radiation. The blood draw may leave slight pain or a bruise that fades quickly.

What happens after a high PSA?

No PSA level proves cancer. Many doctors use 4 ng/mL as the point for further testing, and some use 2.5 or 3. The American Cancer Society gives these odds:

Chance of finding prostate cancer by PSA level (American Cancer Society).
PSA level Chance of prostate cancer
4 to 10 ng/mL About 1 in 4
Above 10 ng/mL Over 50%
  1. 1
    Repeat the test
    US urologists advise repeating a newly raised PSA before any further test, because the level can return to normal. The National Cancer Institute says a doctor may repeat it 6 to 8 weeks later. Follow the same 2-day rules.
  2. 2
    Rule out a harmless cause
    A urine test checks for infection. A doctor reviews medicines and recent procedures, and may do a rectal exam.
  3. 3
    Refine the risk
    A doctor may add free PSA, PSA density, another blood or urine marker, or a risk calculator. These help decide whether a biopsy is worth it.
  4. 4
    Prostate MRI
    An MRI before a biopsy can spare some men the biopsy and aim the needle for others.
  5. 5
    Biopsy, only if still needed
    About 12 tissue samples are taken through the rectum or through the skin between the scrotum and anus, usually under local anesthetic. The biopsy takes about 10 minutes. Results usually take 1 to 3 days.

If the result comes back while you are in Taiwan

  • One raised result is a reason to repeat the test, not to rush. If your trip is shorter than 6 to 8 weeks, the repeat test happens at home.
  • Hand the follow-up to a doctor at home. That doctor will order the repeat test, any MRI or biopsy, and any treatment.
  • If you choose more tests in Taiwan, have the MRI before any biopsy. After a biopsy, a doctor may wait six to eight weeks before an MRI, because bleeding in the prostate can look like cancer.
  • Plan a biopsy where you can be seen afterwards. Soreness and blood in the urine can last a few days, and blood in the semen several weeks. Infection is a known risk.

What to bring to your doctor at home

  • The PSA value, its units (ng/mL), the test date and the laboratory's reference range
  • Any earlier PSA results, with dates
  • A list of medicines that change PSA, such as finasteride, dutasteride or testosterone
  • The written findings of any rectal exam or ultrasound, and the images if you were given them

Report language, turnaround and whether images are released vary by clinic. Your coordinator confirms them when you book.

What are the risks of PSA screening?

The blood draw itself carries very little risk. The risks come from what a raised result sets off: more tests, a biopsy, and sometimes treatment for a cancer that would never have caused harm.

For every 1,000 men aged 55 to 69 screened over about 13 years (USPSTF estimate, as set out by the US National Cancer Institute).
Outcome Men out of 1,000
Avoid death from prostate cancer About 1.3 (later trial data: up to 2)
Avoid cancer that has spread 3
Die of prostate cancer despite screening and treatment 5
Have a positive PSA result 240
Are hospitalized after a biopsy 2
Are diagnosed with prostate cancer 100
Are treated with surgery or radiation 80
Have sexual dysfunction from treatment 50
Have urinary incontinence from treatment 15

False alarms and biopsy harms

  • About 6–7% of men have a false-positive PSA in any one round of screening.
  • Only about 25% of men who have a biopsy for a raised PSA turn out to have prostate cancer.
  • About 1% of prostate biopsies lead to complications that need hospital care.
  • Biopsy harms include pain, bleeding, blood in the semen and infection.

Overdiagnosis

Overdiagnosis means finding a cancer that would never have caused symptoms in the man's lifetime. The USPSTF estimates that 20% to 50% of men diagnosed through PSA screening may be overdiagnosed. It expects the rate to rise with age.

Treating such a cancer brings harm with no benefit. After removal of the prostate, about 1 in 5 men have long-term urinary incontinence, and 2 in 3 have long-term erectile dysfunction. More than half of men treated with radiation have long-term erectile dysfunction.

Three practices now reduce the harm of overdiagnosis:

  • Active surveillance: for low-risk cancer, US urologists prefer close monitoring to immediate treatment.
  • MRI before biopsy: in the Swedish GÖTEBORG-2 trial, an MRI-targeted biopsy instead of a standard one cut diagnoses of clinically insignificant cancer by more than half.
  • Longer gaps for low PSA: US urologists allow a longer re-screening interval for men aged 45 to 70 whose PSA is below 1 ng/mL, which means fewer tests.

Longer follow-up has improved the balance. The European ERSPC trial followed 162,236 men aged 55 to 69 for a median of 23 years. Prostate cancer deaths were 13% lower in the screening group. One death was prevented for every 456 men invited to screening.

How much does the Prostate Exam cost, and what does the price include?

The live price further down this page is the booking price of the Prostate Exam at iHope Clinic through New Dawn Health.

  • What it includes: a 30-minute prostate assessment with the PSA read in context. Whether it also covers a rectal exam, an ultrasound or a specialist's review is confirmed when you book.
  • What it does not include: a repeat PSA, a prostate MRI or a biopsy. Those are separate decisions and separate tests.
  • PSA inside a package: if you are booking a full screening package, check the tumor markers page first. Several packages already include PSA for men.
  • Insurance: ask your insurer at home whether it reimburses a test done abroad before you book.

Sources & further reading

  1. [1] Prostate Cancer: Screening (2018) — C for 55–69, D for 70+; DRE not recommended for screening; 1.3 deaths and 3 metastatic cases avoided per 1,000; 20% to 50% overdiagnosis; about 1% of biopsies hospitalized; treatment harms — US Preventive Services Task Force
  2. [2] Prostate Cancer: Screening — update in progress (2018 recommendation still current) — US Preventive Services Task Force
  3. [3] Early Detection of Prostate Cancer: AUA/SUO Guideline Part I — screening (Wei 2023): baseline PSA at 45–50, 40–45 for higher risk, every 2–4 years at 50–69, repeat a newly raised PSA, DRE alongside PSA — Journal of Urology / PubMed Central
  4. [4] Early Detection of Prostate Cancer: AUA/SUO Guideline Part II — biopsy (Wei 2023): MRI before biopsy, PI-RADS, active surveillance, biopsy route — Journal of Urology / PubMed Central
  5. [5] Updates to Early Detection of Prostate Cancer: AUA/SUO Guideline (2026) — Journal of Urology / PubMed
  6. [6] American Cancer Society recommendations for prostate cancer early detection (revised 2023) — ages 50, 45 and 40; retest intervals by PSA 2.5 ng/mL — American Cancer Society
  7. [7] Screening tests for prostate cancer — what raises and lowers PSA; 4 ng/mL cutoff; 1 in 4 chance at 4–10, over 50% above 10; DRE; PSA density — American Cancer Society
  8. [8] Tests to diagnose prostate cancer — biopsy of about 12 cores in about 10 minutes, after-effects, results in 1 to 3 days — American Cancer Society
  9. [9] Prostate-Specific Antigen (PSA) Test — benign causes, 2 days without ejaculation or vigorous exercise, repeat in 6 to 8 weeks, outcomes per 1,000 men screened — National Cancer Institute
  10. [10] Understanding Prostate Changes — BPH does not raise prostate cancer risk; early prostate cancer usually has no symptoms — National Cancer Institute
  11. [11] Prostate-Specific Antigen (PSA) Test — 24 hours without sex or masturbation; causes of a high PSA; a biopsy is the only way to diagnose — MedlinePlus (NIH)
  12. [12] Digital rectal exam — MedlinePlus (NIH)
  13. [13] Enlarged Prostate (Benign Prostatic Hyperplasia) — symptoms, 5–6% at 40–64 and 29–33% at 65+, when to get care right away — NIH / NIDDK
  14. [14] Prostate ultrasound — volume, biopsy guidance — RadiologyInfo.org (RSNA/ACR)
  15. [15] Pelvic ultrasound — bladder, prostate and seminal vesicles in men — RadiologyInfo.org (RSNA/ACR)
  16. [16] Prostate MRI — cannot always tell cancer from inflammation or blood; wait of six to eight weeks after biopsy — RadiologyInfo.org (RSNA/ACR)
  17. [17] How to read your prostate MRI report — PI-RADS 1 to 5 — RadiologyInfo.org (RSNA/ACR)
  18. [18] MRI-targeted or standard biopsy for prostate-cancer diagnosis (PRECISION, Kasivisvanathan 2018; 500 men) — New England Journal of Medicine / PubMed
  19. [19] Results after four years of screening for prostate cancer with PSA and MRI (GÖTEBORG-2, 2024) — New England Journal of Medicine / PubMed
  20. [20] European Study of Prostate Cancer Screening — 23-year follow-up (ERSPC, Roobol 2025; 162,236 men; 13% lower mortality; 1 death prevented per 456 invited) — New England Journal of Medicine / PubMed
  21. [21] Prostate cancer is a common cancer in men — see a doctor early for abnormal symptoms (HPA press release, 2025-10-30; 9,062 cases in 2022, 1,897 deaths in 2024) — Ministry of Health and Welfare (Taiwan), Health Promotion Administration
  22. [22] Taiwan national cancer screening programs — breast, cervical, colorectal, oral and lung; no PSA program — Health Promotion Administration, Ministry of Health and Welfare (Taiwan)

Prostate exam (PSA, rectal exam and prostate imaging) — Frequently Asked Questions

At what age should I start PSA testing?

It depends on the guideline and your risk. The USPSTF (US) calls screening at 55 to 69 an individual decision. The American Cancer Society starts the discussion at 50, or at 45 for African American men and men whose father or brother had prostate cancer before 65. US urologists (AUA/SUO) allow a baseline PSA at 45 to 50, and from 40 to 45 for higher-risk men.

Can a rectal exam replace the PSA test?

No. The American Cancer Society says the rectal exam is less effective than PSA at finding prostate cancer, and the USPSTF does not recommend it as a screening test. US urologists may add it alongside PSA, especially when PSA is 2 ng/mL or higher.

My PSA is above 4. Do I have cancer?

Not necessarily. The American Cancer Society puts the chance of cancer at about 1 in 4 for a PSA between 4 and 10. An enlarged prostate, an infection, a recent biopsy, ejaculation or cycling can all raise it. US urologists advise repeating a newly raised PSA before an MRI or a biopsy.

Does an enlarged prostate mean I am more likely to get prostate cancer?

No. The US National Cancer Institute says an enlarged prostate (BPH) does not increase the risk of prostate cancer. It can raise PSA and cause urinary symptoms, so a doctor weighs PSA against prostate size.

I take finasteride or dutasteride. Does that change my result?

Yes. Both medicines lower PSA, so doctors use a lower cutoff for men who take them. Tell the clinic before the test and your doctor at home when you share the result.

Should I have a prostate biopsy in Taiwan or at home?

A single raised PSA is repeated first, and the National Cancer Institute says a doctor may repeat it 6 to 8 weeks later. If you fly home before then, the next steps belong with your doctor at home. If an MRI is planned, it should come before any biopsy, because doctors may wait six to eight weeks after a biopsy before an MRI.

Prostate exam (PSA, rectal exam and prostate imaging) at New Dawn Health

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