Medically reviewed by Mr Maneesh Ghei, Consultant Urological Surgeon (GMC: 5208045). Last reviewed June 2026.

Checking for prostate cancer at home is not something most men know how to approach, and that uncertainty often leads to months of inaction. Prostate cancer is the most common cancer in men in the UK, with around 52,000 new diagnoses every year according to Cancer Research UK. When caught early, the outcomes are excellent. This guide explains what you can genuinely monitor yourself, where home PSA kits fit in, and when you need to act.

What symptoms can you monitor yourself?

The question I hear most often is: “How would I know if something was wrong?” In the early stages, prostate cancer frequently causes no symptoms at all. That is what makes it genuinely dangerous. Waiting for symptoms before seeking a check-up is not a reliable strategy.

The prostate sits just below the bladder and surrounds the urethra, so when it enlarges (whether due to cancer, benign prostatic hyperplasia (BPH) or prostatitis), urinary symptoms are usually the first sign.

Symptoms worth monitoring include:

• Needing to urinate more frequently, especially at night (nocturia)
• A weak or interrupted urine stream
• Difficulty starting urination, or a feeling you have not emptied your bladder fully
• Blood in your urine or semen: always prompt a same-week GP or clinic review
• Discomfort or pain during ejaculation
• Persistent pain in the lower back, hips or pelvis without a clear cause

A common misconception is that these symptoms mean cancer. In most cases, they do not. BPH is far more common and causes almost identical urinary symptoms. The point is not to diagnose yourself; the point is to notice change and act on it promptly.

How do home PSA test kits work?

Home PSA kits have improved considerably. Most work via a finger-prick blood sample that is tested on a device at home or sent to a laboratory. They measure your level of prostate-specific antigen, a protein produced by prostate tissue. Elevated PSA can indicate prostate cancer, but it can also rise with BPH, prostatitis, after ejaculation, after strenuous exercise or following a urinary infection.

A PSA below 4 ng/mL is generally considered normal, though this depends on age. For a man in his 40s, a level of 2 ng/mL might warrant closer monitoring; for a man in his 70s, the thresholds are interpreted differently. We cover what constitutes a dangerous PSA level in a separate guide. Home test results should be discussed with a clinician, not acted on in isolation.

What home kits do well: they give you a number that prompts action. Many men who would not otherwise initiate a GP appointment find that a home test pushes them to seek professional advice, and that is useful. What home kits do not do well: they cannot tell you whether a raised PSA is caused by cancer or something benign, and they cannot catch cancer when PSA is normal (which happens in roughly 15% of prostate cancer cases).

If your result comes back elevated, do not panic. Book a review with your GP or a urologist. Our guide to whether a PSA test is reliable explains exactly what a raised result does and does not mean. A single PSA reading means very little on its own; the clinical picture (your age, symptoms, prostate size and PSA velocity over time) is what guides next steps.

How do you self-assess your risk?

Certain factors significantly raise a man’s lifetime risk of developing prostate cancer. Knowing where you sit on this risk spectrum tells you how proactive to be about screening, regardless of symptoms.

Age: Risk rises sharply after 50. Most prostate cancer diagnoses occur in men over 65, though younger presentations do happen and tend to be more aggressive.

Family history: If your father or brother was diagnosed with prostate cancer, your risk approximately doubles. Read our full guide on whether prostate cancer is hereditary for detail on which genes are involved and what earlier screening looks like in practice. If the diagnosis was before age 60, or if multiple family members were affected, the risk is higher still. BRCA2 gene mutations, more commonly associated with breast cancer, also significantly increase prostate cancer risk in men.

Ethnicity: Black African and Black Caribbean men have roughly double the risk of prostate cancer compared with white men, and they tend to develop the disease at a younger age. Discussions about PSA screening should start at 45, not 50, for men in this group.

In my experience, the men who come to me with advanced disease are disproportionately those who were at higher risk but had never been tested. If you have any of these risk factors and have not had a PSA test, that is the most useful thing you can do right now.

What should you do if you notice symptoms or have a raised PSA result?

If your home PSA kit returns an elevated result, or if you have been experiencing urinary symptoms for more than a few weeks, the right step is a formal clinical assessment. Not a repeat home test, and not waiting to see if things settle.

A urological assessment for a possible prostate problem typically involves a PSA blood test (done formally in a lab for accuracy), a digital rectal examination (DRE) to assess prostate size and texture and in many cases a multiparametric MRI scan of the prostate before any decision about biopsy. This imaging-first approach, now recommended by NICE guidance NG131, has substantially reduced the number of unnecessary biopsies performed.

Not every elevated PSA or abnormal examination leads to treatment. A significant proportion of prostate cancers detected through screening are low-grade and slow-growing, and these are often managed with active surveillance rather than intervention. What matters is having the information so the right decision can be made.

Can lifestyle changes reduce your prostate cancer risk?

The evidence on lifestyle and prostate cancer risk is less definitive than for bowel or lung cancer. A diet high in red and processed meat, combined with low vegetable intake, is associated with higher prostate cancer risk in population studies. Foods containing lycopene, particularly tomatoes, have shown some protective association in research, but no single food makes a clinically significant difference on its own.

Maintaining a healthy weight is more clearly relevant. Obesity is associated with higher-grade prostate cancer and worse outcomes after treatment. Regular aerobic exercise supports healthy hormone levels and reduces systemic inflammation. NICE recommends at least 150 minutes per week. Stopping smoking is also worthwhile; smoking is associated with more aggressive disease and poorer treatment outcomes.

The most important lifestyle choice you can make for your prostate is to engage with regular screening if you are in a higher-risk group. No dietary change substitutes for that.

When is blood in urine or semen an emergency?

Frequently Asked Questions

Can you feel prostate cancer yourself?

No. The prostate is located internally, below the bladder and cannot be felt from outside the body. A digital rectal examination (DRE) performed by a clinician can detect abnormalities in prostate size and texture, but even this does not reliably detect early-stage cancer. Blood tests (PSA) and MRI scanning are the primary tools for early detection.

Are home PSA test kits accurate?

Laboratory-calibrated finger-prick kits are reasonably accurate for the PSA measurement itself. The main limitation is not the measurement but the interpretation. PSA can be elevated for many reasons other than cancer, and a normal result does not rule out prostate cancer. Results should always be reviewed with a clinician, not acted on in isolation.

What age should I start checking for prostate cancer?

For men with average risk, discussions about PSA screening typically begin at age 50. For Black African and Black Caribbean men or those with a first-degree relative diagnosed with prostate cancer, the conversation should start at 45. If you have a known BRCA2 mutation, some guidelines suggest starting screening even earlier. Speak to your GP or a urologist about what is appropriate for you.

What PSA level is a cause for concern?

A PSA above 4 ng/mL is commonly used as a threshold for further investigation, but the interpretation is age-dependent. A level of 3 ng/mL might be worth investigating in a man in his 40s, while a PSA of 5 ng/mL in a man in his 70s with known BPH may be expected. Clinicians pay close attention to PSA velocity (how quickly the level has risen over time), as this is often more informative than a single reading.

Can prostate cancer be detected without symptoms?

Yes, and this is precisely why screening matters. A significant proportion of early-stage prostate cancers cause no urinary symptoms at all. The cancer is only discovered because PSA is raised on a routine blood test. By the time localised prostate cancer does cause symptoms, it has often grown considerably. Symptom-based detection is not an early-detection strategy.

What happens at a private prostate screening appointment?

A private prostate screening with Mr Ghei at Urocare London includes a full medical history, a PSA blood test, and a clinical examination including digital rectal examination if appropriate. Results are discussed in full at the same appointment. If further investigation is needed (MRI, urine tests, or a follow-up PSA), this will be arranged and explained clearly. Most men leave with a clear answer or a clear next step.

Do I need a GP referral for a private prostate check?

No. At Urocare London you can self-refer directly to Mr Ghei without a GP referral. You can be seen within days rather than waiting weeks for a GP appointment and subsequent NHS referral pathway.

Can prostate cancer be prevented?

There is no guaranteed way to prevent prostate cancer. Maintaining a healthy weight, exercising regularly and eating a balanced diet may reduce risk modestly, but the most significant risk factors (age, ethnicity and family history) cannot be changed. The most effective strategy for men at elevated risk is regular PSA screening so that any cancer is found at a stage when it is fully treatable.

Sources

• Cancer Research UK: Prostate cancer statistics
• NHS: Prostate cancer overview
• NICE guideline NG131: Prostate cancer diagnosis and management
• BAUS: Prostate cancer patient information

This article is for information only and is not a substitute for personalised medical advice. If you have concerns about your prostate health, speak to your GP or a consultant urologist.

About the Author

Mr Maneesh Ghei, Consultant Urological Surgeon (GMC: 5208045)

Mr Maneesh Ghei is a consultant urological surgeon with NHS and private practice across four London hospitals. He specialises in the diagnosis and management of prostate conditions including BPH, prostatitis and prostate cancer, as well as urinary symptoms, kidney stones and male sexual health. Mr Ghei sees new patients privately with same-week availability. No GP referral is required. Book a prostate screening consultation.