Full Health Check in Your 30s. What to Test, What to Watch For and Why This Decade Matters

Reviewed by the medical team at The Wellness. Last updated 1 October 2026.

Book a full health check on WhatsApp or email team@thewellnesslondon.com or call 020 3951 3429.

Why have a health check in your 30s

Because the numbers that predict heart disease, diabetes and liver disease in your 50s are already visible in your 30s. They change slowly, and the earlier they are found the smaller the change needed to correct them.

Because family history starts to mean something. If a parent had a heart attack, diabetes or cancer young, your own risk is higher, and the right tests can be chosen around it.

And because a baseline is valuable in itself. A cholesterol, blood sugar or kidney result taken at 34 makes every later result easier to interpret, since a doctor can see the direction of travel rather than a single number.

What should a full health check in your 30s include

A detailed history and examination. Family history, lifestyle, sleep, alcohol, exercise and stress, then blood pressure, pulse, weight and waist measurement.

Heart and circulation. A lipid profile with apolipoprotein B, and lipoprotein(a) measured once. HEART UK recommends testing lipoprotein(a) at least once in adult life, and a raised level changes how other risk factors are managed.

Blood sugar. HbA1c, which reflects average glucose over around 3 months and identifies prediabetes while it is still reversible.

Liver and kidneys. Liver function tests and kidney function, with a urine test for protein where blood pressure or blood sugar are raised.

Blood count, iron and vitamins. A full blood count, ferritin, vitamin B12, folate and vitamin D. Iron deficiency is common in women with heavy periods and is a frequent cause of tiredness.

Thyroid and hormones where they are indicated. Thyroid function when there are symptoms such as tiredness, weight change or irregular periods, and hormone tests when the history points to them.

Ask what your check should include on WhatsApp or email team@thewellnesslondon.com.

What should women in their 30s know about fertility

Fertility declines with age, gradually through the early 30s and more steeply after 35. NICE advises that around 8 in 10 couples where the woman is under 40 will conceive within 1 year of regular unprotected sex.

AMH, the blood test often sold as a fertility test, reflects the number of eggs remaining and is useful in planning IVF. A study in JAMA in 2017 found that it did not predict the chance of conceiving naturally in women trying to conceive. A low result is not a reason to panic, and a normal result is not a guarantee.

What helps most is a conversation with a doctor about your plans, your cycle and your history, with tests chosen to answer your question. See a doctor after 12 months of trying, or after 6 months if you are 36 or over or have irregular periods.

Which cancer warning signs matter in your 30s

Bowel cancer is becoming more common in younger adults. Research published in The Lancet Oncology in 2024 found early-onset bowel cancer rising in 27 of 50 countries studied, including England. See a doctor promptly for blood in your stools, a lasting change in bowel habit, unexplained weight loss, persistent abdominal pain or unexplained tiredness from iron deficiency.

Testicular cancer is most common between 15 and 49. Check once a month for a lump, swelling or heaviness, and see a doctor about any change.

Breast changes should be checked at any age. A new lump, a change in shape, skin dimpling or nipple changes all need examining.

Skin cancer is linked to sun exposure and sunburn. Any mole that changes in size, shape or colour, bleeds or itches should be examined with dermoscopy.

Cervical screening continues from 25 to 64. In England, people aged 25 to 49 whose HPV test is negative are now invited every 5 years.

How often should you have a health check in your 30s

For most healthy people in their 30s with no family history, a full baseline once, then every 3 to 5 years, is reasonable. Every 1 to 2 years makes more sense if your blood pressure, cholesterol, blood sugar or weight are borderline, if you have a strong family history, or if you are planning a pregnancy.

Sooner if something changes. New symptoms, a new diagnosis in a parent or sibling, or a significant change in weight are all good reasons to recheck.

What does a full health check cost in London

At the top of the London market, MRI-led programmes run beyond £15,000 and the most extensive exceed £32,000, while hospital-based health assessments commonly sit at around £1,100 to £1,200.

At The Wellness, the assessment, tests and follow-up are agreed around your needs. Confirm the programme fee and what it covers before booking.

• Executive Health Programme: enquire for the fee and scope of assessment.

• Baseline Assessment, built to set your reference point for the decades ahead: enquire for fees.

• Complete Biomarker Assessment: confirm the fee, tests and consultation arrangements before booking.

• Fertility Scan Package: enquire for fees and scan options.

• Comprehensive Blood Panel: confirm the fee, tests and consultation arrangements before booking.

• Targeted Blood Panel and in-person consultation: confirm fees, appointment length and examination arrangements before booking.

Confirm appointment and testing availability at our London clinics, including Marylebone and Belgravia, before booking.

Why patients choose The Wellness for a health check in their 30s

Because the check is built around you. Your age, sex, family history and plans decide what is tested, so you pay for results that can change a decision.

Because every result is explained. You leave knowing what each number means, what needs action and what does not.

Because it sets your baseline properly, including the one-off tests such as lipoprotein(a) that are easy to forget.

Because fertility questions are answered honestly, with tests chosen to answer the question you are asking.

And because findings can guide treatment, follow-up testing or a referral where clinically appropriate. Timing depends on the assessment and availability.

Related reading

Full health check in London covers what a check should include at any age, health check in your 40s and health check over 50 cover the next decades, fertility testing and preconception covers planning a pregnancy, and the best blood tests in London explains which markers are worth paying for.

Book today on WhatsApp or call 020 3951 3429.

Frequently asked questions

Should I have a health check in my 30s

Yes, a baseline check is worthwhile. Blood pressure, cholesterol, blood sugar and liver health begin to change in this decade, often without symptoms, and the NHS Health Check does not start until 40.

What blood tests should I have in my 30s

A lipid profile with ApoB, lipoprotein(a) once, HbA1c, liver and kidney function, a full blood count, ferritin, vitamin B12, folate and vitamin D, with thyroid and hormone tests where symptoms or history point to them.

Does an AMH test show if I can get pregnant

No. AMH reflects the number of eggs remaining and helps in planning IVF, but research has shown it does not predict the chance of conceiving naturally. A doctor can advise on the tests that answer your question.

What are the warning signs of bowel cancer in young adults

Blood in your stools, a lasting change in bowel habit, unexplained weight loss, persistent abdominal pain and tiredness from iron deficiency. See a doctor promptly if you notice any of these, whatever your age.

How often should I have a health check in my 30s

A full baseline once and then every 3 to 5 years is reasonable for most healthy people. Every 1 to 2 years is better with borderline results, a strong family history or when planning a pregnancy.

How much does a full health check cost in London

At The Wellness, enquire for fees for the Comprehensive Blood Panel, Complete Biomarker Assessment, Baseline Assessment and Executive Health Programme. Confirm the tests, consultation and follow-up covered before booking.

The Wellness is a doctor-led private healthcare group providing medical care from our London clinics, including Marylebone and Belgravia. All doctors are GMC-registered. Imaging is arranged at specialist centres and reported by consultant radiologists, and blood analysis is performed by accredited laboratories. In an emergency call 999. This article is general information and not a substitute for medical advice about your own health.

Enquire now on WhatsApp or email team@thewellnesslondon.com or call 020 3951 3429.

References. NHS England, NHS Health Check programme. HEART UK, lipoprotein(a) guidance. NICE guideline NG238, cardiovascular disease risk assessment and reduction. Sung H et al, colorectal cancer incidence trends in younger versus older adults, The Lancet Oncology, 2024. Cancer Research UK, early-onset bowel cancer analysis, 2024. NICE clinical guideline CG156, fertility problems, assessment and treatment. Steiner AZ et al, association between biomarkers of ovarian reserve and infertility among older women of reproductive age, JAMA, 2017. NHS England, cervical screening programme and HPV primary screening intervals. NHS, testicular cancer and bowel cancer symptoms.