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We've helped over 200,000 people take control of their health. Are you over 50, over 45 and of black ethnicity, or do you have strong family history of prostate cancer? Perhaps you’d like to track your PSA level over time to check for changes.
Our PSA Blood Test can detect if you have a raised PSA level, which can help detect prostate cancer and let you take early action.
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If your PSA level is raised, it doesn’t necessarily mean you have prostate cancer. There are many other reasons why you may have a raised PSA level (find out more in the limitations of the test section).
A PSA blood test is just a first step, and if your result is only slightly raised, your doctor may suggest repeating the test in a few weeks. If your PSA level is repeatedly raised, or if you have other signs and symptoms of prostate cancer, such as needing to urinate more often, you may be referred to a specialist for further tests.
Not all prostate cancer is aggressive and, in some cases, might not need treatment.
There is no one PSA level that’s considered normal. However, PSA level thresholds differ with age. The table below, based on figures from NICE guidance, applies to patients with possible symptoms of prostate cancer, and is given as a guide. You may be referred to a specialist if your PSA level corresponds with these figures. But your GP will take many other factors into account (such as any symptoms you may have and examination results) before referring you.
| Age | PSA level |
| 40-49 | >2.5ng/ml |
| 50-59 | >3.5ng/ml |
| 60-69 | >4.5ng/ml |
| 70-70 | >6.5ng/ml |
Prostate cancer is only one of several causes of raised PSA levels. And many of these other causes are benign and treatable. They include urinary tract infections (UTIs), or even recent ejaculation and some forms of exercise. Find out more about causes of raised PSA levels.
The risk of prostate cancer is higher if you’re over 50, over 45 and of black ethnicity, or if you have a family history of prostate cancer.
Some lifestyle factors are also likely to increase your risk, such as being overweight and eating a poor diet, especially one that’s low in vegetables and high in processed meats and saturated fats.
Trans women and non-binary people who were assigned male at birth have a prostate, even after gender-affirming surgery, so it’s still possible to get prostate cancer.
Your risk will vary depending on whether you’ve had treatment that affects your testosterone levels. Testosterone-lowering therapy and gender-affirming surgery can slightly reduce your risk of prostate cancer compared to cis men, but they can also falsely lower your PSA level. It's important these factors are considered when a doctor interprets your result. You can find out more about measuring PSA if you’re a trans woman or non-binary in our blog.
Around three quarters of men with a raised PSA level don’t have prostate cancer. This is known as a false positive result, and it can lead to unnecessary worry and investigations.
This test might also miss prostate cancer. This is rarer, but it can be harmful if a fast-growing cancer is missed.
There are other pros and cons to PSA testing. And you can find out more in our guide on whether you should take a PSA test.
Taking certain drugs that reduce the size of the prostate, such as finasteride or dutasteride, can falsely lower PSA levels. Please let us know if you're taking this sort of medication.
