TRT Monitoring
Monitoring panel for testosterone replacement therapy: hormones, liver, lipids, PSA, and blood count.
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
PSA is an important marker in men's health that belongs in any comprehensive health panel. For performance-focused men, tracking PSA ensures prostate health is not overlooked alongside fitness metrics.
Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.
This test measures the concentration of prostate-specific antigen in your blood, expressed in micrograms per litre (µg/L). PSA is produced by both healthy and abnormal prostate tissue. The protein plays a role in keeping seminal fluid liquid.
The most commonly used threshold is 4.0 µg/L, but interpretation depends heavily on your age. In men under 50, a value above 2.5 µg/L is already considered noteworthy, while in men over 70, a value up to 6.5 µg/L can be normal. In addition to total PSA, the ratio between free and bound PSA can be determined, which provides additional information about the nature of any elevation.
PSA is currently the most widely used blood marker for early detection of prostate cancer. Prostate cancer is the most common cancer in men in the Netherlands, and early detection significantly improves treatment options.
However, an elevated PSA does not automatically mean cancer. Benign prostatic hyperplasia (BPH), which is common in men over 50, is the most frequent cause of mildly elevated PSA. Prostate inflammation (prostatitis) can also raise the value considerably. Even temporary factors such as cycling, ejaculation shortly before the test, or a digital rectal exam can influence PSA.
The value of PSA lies particularly in its trend over time. A gradually rising PSA across multiple measurements (PSA velocity) can be more clinically relevant than a single elevated value. If a result is notable, a doctor will usually recommend further investigation, such as an MRI or biopsy.
The question of when to test PSA is a topic of debate in the medical community, as screening can also lead to unnecessary anxiety and follow-up investigations. There is no national population screening programme for prostate cancer in the Netherlands.
It is sensible to have your PSA level measured if you have symptoms related to the prostate, such as difficulty urinating, frequent urination (especially at night), or a weak urinary stream. Men over 50 with a family history of prostate cancer (father, brother) also benefit from periodic monitoring. For men with a first-degree relative with prostate cancer, a baseline measurement is sometimes recommended from age 40.
Fasting is not required, but avoid cycling and ejaculation in the 48 hours before the test for the most reliable result.
The influence of lifestyle on PSA is more limited than for many other blood values, but there are some relevant factors. Being overweight, particularly abdominal fat, has been linked to slightly elevated PSA and a higher risk of aggressive forms of prostate cancer. Maintaining a healthy weight can therefore contribute to a more favourable PSA profile.
Regular exercise appears to have a protective effect on prostate health. A diet rich in vegetables (especially tomatoes for lycopene), fish, and limited red meat is linked by some researchers to a lower prostate cancer risk, although the evidence is not conclusive.
Avoid cycling and sexual activity in the 48 hours before a PSA test, as both can temporarily elevate the value. Also report medication use to your doctor: 5-alpha reductase inhibitors (such as finasteride) artificially halve the PSA value.
This marker is included in the following test panels.
Monitoring panel for testosterone replacement therapy: hormones, liver, lipids, PSA, and blood count.