Prostate calcium spots seen by chance on a scan

What the report means

The prostate is a gland in the male reproductive system that lies just below the bladder and makes fluid that is part of semen. (MedlinePlus) Calcifications are small deposits of calcium inside it. On ultrasound they show as bright spots, and on CT as small dense areas. (Tang 2017)(Kim 2025)

A review in the World Journal of Men's Health describes two kinds: spots that form inside the prostate's own small glands, often where the ducts are squeezed by an enlarged prostate or after long-lasting inflammation, and spots near the urethra linked to urine flowing back into the gland. It says prostatic calculi are mostly without symptoms and are often found by chance when the prostate is checked for enlargement. (Hyun 2018)

How common they are with age

In a study of 68,705 men aged 18 to 79 who had an ultrasound at a health checkup in China, about 1 in 5 had prostate calcification. It was found in 9.0% of men aged 18 to 29, 32.3% at 50 to 59 and 66.7% at 70 to 79, and age was the strongest risk factor. (Tang 2017) A CT study of 4,805 men in Korea also found that men with calcifications were older on average. (Kim 2025)

Numbers vary a lot between studies. The review gives a range of about 7% to 70%. (Hyun 2018) In one Korean study using ultrasound through the rectum, calcification was found in 36.1% of men at a health checkup centre and 48.3% of men seen in a urology clinic. (Hong 2012)

How it relates to prostate cancer screening

Calcium spots on a scan are not a screening test for cancer, and none of the screening advice below lists them as a reason to test. The screening decision stays the same as for anyone your age:

USPSTF (US, 2018; update in progress): for men aged 55 to 69, PSA-based screening is an individual decision made after talking through the benefits and harms with a clinician; it recommends against PSA screening from age 70. (USPSTF)
ACS (US, 2023): men should make an informed decision with their health care provider, starting the conversation at 50 at average risk, 45 at high risk and 40 at even higher risk. (ACS)
NHS (UK): routine PSA testing is not offered unless genetic tests have shown a faulty BRCA2 gene, but anyone with a prostate can ask a GP about PSA testing, and the GP discusses the benefits and risks first. (NHS PSA test)

Research on a link with cancer is mixed. A Japanese CT study followed 636 men aged 50 and over, scanned in 2010 and 2011, until December 2021: prostate cancer was later diagnosed in 6.5% of men with calcification and 2.6% of men without. The authors called for larger studies before it is used in screening. (Kumasaka 2023) The full screening picture is on the prostate cancer screening page.

Calcium spots and PSA results

In the Korean CT study, PSA levels and prostate size did not differ significantly between men with and without calcifications. (Kim 2025) The USPSTF says a raised PSA can be caused by an enlarged prostate or prostate inflammation as well as by cancer. (USPSTF) How PSA numbers and age-based ranges are read is on the PSA test results page, MRI scoring after a raised PSA is on the prostate MRI PI-RADS results page, and a large prostate on the same report is covered on enlarged prostate seen by chance.

Urinary signs to mention to a doctor

Studies have found higher urinary symptom scores on average in men with calcifications, and the Korean CT study saw the highest scores in men with denser spots. (Kim 2025)(Hong 2012) The NHS says to see a GP if you have difficulty peeing or need to pee more often, because these symptoms can sometimes be caused by more serious conditions such as prostate cancer. Ask for an urgent GP appointment or get help from NHS 111 if you have blood in your pee, pain when peeing, or cannot pee at all. (NHS)

The NHS says prostatitis (inflammation of the prostate) can be serious and needs urgent medical help. Its symptoms can include pain or burning when peeing, straining to pee, needing to pee more often, pain in the penis, scrotum, testicles or bottom, pain when you ejaculate, and a high temperature. Go to A&E or call 999 if you suddenly feel confused, have blue, grey, pale or blotchy skin or lips, a rash that does not fade when you roll a glass over it, or severe difficulty breathing. (NHS prostatitis)

Other things on the same report

A pelvic scan often notes more than one finding. See bladder wall thickening seen by chance, kidney stone found by chance and after an abnormal screening result.

Where they differ:

How common they are. Reported rates range from about 7% to 70%, depending on age, the scan used and whether men were at a checkup or a urology clinic. (Hyun 2018)(Tang 2017)(Hong 2012)
Link with prostate cancer. One single-centre CT study found more later cancer in men with calcification and suggested it may help guide screening; a larger CT study found no difference in PSA; the USPSTF, ACS and NHS screening advice does not mention calcification. (Kumasaka 2023)(Kim 2025)(USPSTF)(ACS)(NHS PSA test)
Who is offered PSA testing without symptoms. The USPSTF frames it as an individual decision at 55 to 69 and recommends against it from 70; the ACS starts the conversation at 50, or 45 or 40 at higher risk; the NHS does not offer routine testing but lets anyone with a prostate ask a GP. (USPSTF)(ACS)(NHS PSA test)
Up-to-date status. The USPSTF recommendation dates from 2018 and its page says an update is in progress. (USPSTF)

Your doctor decides what your result means for you.

Questions people ask

Are calcium spots in the prostate a sign of cancer?

Usually they are a common finding with age. A review in the World Journal of Men's Health describes prostatic calculi as mostly without symptoms and often found by chance alongside benign prostate enlargement. One Japanese CT study of 636 men aged 50 and over found prostate cancer was later diagnosed more often in men with calcification (6.5% versus 2.6%), but it was a single-centre look back, and no screening guidance cited here uses calcium spots as a reason to test. (Hyun 2018) (Kumasaka 2023) (USPSTF)

How common are prostate calcifications?

Very common, and more common with age. In a study of 68,705 men on checkup ultrasound in China, about 1 in 5 had them overall, rising from 9.0% at 18 to 29 to 32.3% at 50 to 59 and 66.7% at 70 to 79. Reports vary widely, from about 7% to 70%, depending on age and the test used. (Tang 2017) (Hyun 2018)

Do calcium spots raise my PSA?

A CT study of 4,805 men in Korea found no significant difference in PSA levels between men with and without prostate calcifications. The USPSTF says a raised PSA can come from an enlarged prostate or inflammation as well as cancer. See our PSA test results page for how results are read. (Kim 2025) (USPSTF)

Should I get a PSA test because of this finding?

The screening decision is the same as for anyone your age. In the US, PSA screening at 55 to 69 is an individual decision made with a clinician (USPSTF), and the ACS says to start the conversation at 50, or 45 or 40 at higher risk. In the UK, routine PSA testing is not offered, but anyone with a prostate can ask a GP. Your doctor decides with you. (USPSTF) (ACS) (NHS PSA test)

When should I see a doctor?

The NHS says to see a GP if you have difficulty peeing or need to pee more often, and to ask for an urgent GP appointment or NHS 111 if you have blood in your pee, pain when peeing or cannot pee at all. It says prostatitis, with symptoms such as burning when peeing, pain in the penis, testicles or bottom and a high temperature, needs urgent medical help. (NHS) (NHS prostatitis)