Should I Wait for My NHS Health Check or Book a Private Screening Today?
Comparing NHS health checks with private screening options — timelines, scope, and which approach may be right for you.
An NHS health check is a free preventive assessment offered to adults in England aged 40–74 every five years, designed to evaluate cardiovascular risk factors. A private health screening is an elective set of blood tests and health assessments that individuals can book at any time, without a referral, to gain a broader or more timely picture of their current wellbeing.
If you've recently received an NHS health check invitation — or you're still waiting for one — you may be wondering whether it's worth booking a private health screening in the meantime. This guide compares both pathways in detail, helping you decide what's right for you.
In This Article
How Does the NHS Health Check Work?
The NHS Health Check programme is available to adults in England aged 40 to 74 who have not already been diagnosed with certain pre-existing conditions such as heart disease, diabetes, kidney disease, or stroke. It's typically offered once every five years through your registered GP surgery.
During the check, a healthcare professional will usually assess:
- Blood pressure
- Cholesterol levels (total cholesterol and HDL)
- Blood sugar levels (to assess type 2 diabetes risk)
- Body mass index (BMI)
- Lifestyle factors such as smoking, alcohol intake, and physical activity
Practical Insight: The NHS Health Check is an excellent baseline assessment, but its scope is intentionally focused on cardiovascular risk. It may not cover other areas of health that some individuals wish to explore.
What Does a Private Health Screening Typically Include?
A private health screening offers a wider panel of blood tests and health markers, depending on the package you choose. For a detailed look at what a comprehensive check involves, see our guide on what happens during a full body MOT. Rather than focusing solely on cardiovascular risk, private screenings can provide insight into a broader range of biomarkers.
Common markers included in private health screening blood tests may cover:
- Full blood count (FBC) — evaluates red blood cells, white blood cells, and platelets
- Liver function tests (LFTs) — including ALT, AST, ALP, bilirubin, and albumin
- Kidney function markers — such as creatinine, urea, and eGFR
- Thyroid function — TSH, free T3, and free T4
- HbA1c — a longer-term indicator of blood sugar management
- Lipid profile — total cholesterol, HDL, LDL, and triglycerides
- Iron studies — ferritin, serum iron, TIBC
- Vitamin D and B12 levels
- Inflammatory markers — such as CRP
Practical Insight
A broader blood panel can sometimes highlight areas that may benefit from further discussion with your GP — such as borderline thyroid results or low vitamin D — which a standard NHS Health Check would not typically assess.
NHS Health Check vs Private Screening: A Side-by-Side Comparison
| Feature | NHS Health Check | Private Health Screening |
|---|---|---|
| Cost | Free | Paid (varies by package) |
| Eligibility | Ages 40–74, no pre-existing conditions | Anyone, any age |
| Frequency | Every 5 years | As often as you choose |
| Waiting Time | May wait weeks or months | Book at your convenience |
| Scope | Cardiovascular risk focused | Broader range of biomarkers |
| Blood Markers Tested | Cholesterol, blood sugar, BMI | Can include 30+ markers |
| Results Turnaround | Discussed at follow-up | Typically within a few working days |
Practical Insight: Neither option is inherently better than the other. They serve different purposes and can complement each other effectively as part of a long-term approach to wellbeing.
Who Should Consider Booking a Private Health Screening?
You might consider a private screening if:
- You're under 40 and not yet eligible for an NHS Health Check but want baseline health data
- You have a family history of conditions such as diabetes, heart disease, or thyroid disorders
- You're experiencing general symptoms such as persistent tiredness or unexplained weight changes
- You haven't received your NHS Health Check invitation and would prefer not to wait
- You'd like a broader panel of tests beyond what the NHS check covers
- You want to track your health over time, perhaps annually rather than every five years
How Often Should You Have a Health Screening?
The NHS recommends a health check every five years for eligible adults. However, many health professionals suggest that annual or biannual blood testing can be a more proactive approach, particularly for those with risk factors or a desire to monitor trends over time. For a detailed breakdown by age group, read our guide on how often you should get a health check-up in the UK.
Regular screening can help you:
- Establish personal baselines — knowing what's normal for you
- Identify gradual changes — such as slowly rising cholesterol or declining vitamin D
- Have informed conversations with your GP based on objective data
- Stay motivated with lifestyle changes by tracking measurable progress
Practical Insight
Some individuals find that having an annual private screening between their five-yearly NHS checks provides a more complete picture of their health over time.
Understanding Your Results
When you receive your screening results, each biomarker will typically be reported alongside a reference range. Here's a brief overview of some commonly tested markers:
- Total Cholesterol (< 5 mmol/L desirable): Elevated levels may be associated with increased cardiovascular risk.
- HbA1c (< 42 mmol/mol normal): Reflects average blood sugar levels over the past 2–3 months.
- TSH (0.27–4.2 mIU/L typical range): Thyroid-stimulating hormone levels outside this range can suggest thyroid concerns.
- Vitamin D (> 50 nmol/L adequate): Many people in the UK have lower-than-optimal levels.
- CRP: An elevated CRP can sometimes indicate inflammation in the body.
Results should always be considered in the context of your overall health and discussed with an appropriate healthcare professional.
Frequently Asked Questions
Should I wait for my NHS health check or book a private screening?
It depends on your individual circumstances. If your NHS Health Check is imminent, it's a valuable free service. However, if you're not yet eligible, prefer a broader range of tests, or don't want to wait, a private health screening can offer timely insight.
Can I have both an NHS Health Check and a private screening?
Yes, absolutely. Many individuals use private health screening to fill the gaps between their five-yearly NHS checks. The two approaches are complementary.
Do I need a GP referral to book a private health screening?
No. At our nurse-led clinic, you can book directly without a referral. We provide testing and clear reporting of your results.
Is a private health screening suitable for people under 40?
Yes. While the NHS Health Check is only available to those aged 40–74, private screening is available to adults of any age. Younger adults who want to establish baseline health markers often find private screening helpful.
Are private health screening results reliable?
Private health screening blood tests are processed by accredited laboratories using the same analytical methods as NHS pathology services. Results are clinically reliable and can be shared with your GP.
Taking a Proactive Approach to Your Health
Whether you choose to wait for your NHS Health Check, book a private health screening, or combine both approaches, the most important step is staying informed about your health. Knowledge of your biomarkers and risk factors empowers you to make better decisions and have more meaningful conversations with your healthcare provider. You may also be interested in learning whether preventive screening is actually cheaper than private treatment.
At Health Screening Clinic, we believe in accessible, straightforward health testing. As a nurse-led clinic in London, we provide screening and reporting in a professional, supportive environment.
This article has been written for educational and informational purposes only. It is not intended as medical advice, diagnosis, or treatment. Health Screening Clinic is a nurse-led service providing health screening and blood testing only. We do not offer GP services, prescriptions, scans, or treatment.
