What is the best blood test in London?

There is no single "best" blood test — it depends on your symptoms, history and goals. A doctor-led consultation ensures the correct panel is selected, so you avoid both under-testing (missing the cause) and over-testing (paying for markers that won't change your plan).

Do I need a doctor for a blood test?

Yes — a doctor ensures proper interpretation and accurate diagnosis. Reference ranges describe statistical averages, not what is optimal for you. Without clinical context, borderline thyroid dysfunction, low-normal ferritin and suboptimal hormone levels are routinely missed.

How quickly are results available?

Most standard blood tests return within 2–3 working days. More specialised assays (advanced hormones, genetics, certain immunology panels) can take up to 7–10 days. We confirm timelines at booking so you know exactly when your results review will be scheduled.

Perimenopause Blood Test in London

A doctor-led perimenopause blood test in London at our Chelsea clinic assesses oestradiol, FSH, LH, progesterone, testosterone and the wider hormonal picture that drives perimenopausal and menopausal symptoms. Every menopause blood test London patients book here is interpreted personally by a GMC-registered clinician — not returned as an unexplained lab printout.

Perimenopause can begin a decade before the menopause itself. Cycles change, sleep fragments, mood becomes harder to predict, energy dips and weight redistributes — yet many women are told their bloods are "normal" and offered no plan. A properly designed perimenopause hormone panel, read in the context of your symptoms, frequently reveals the medical reason behind what you are experiencing.

What this test includes

A meaningful perimenopause assessment goes well beyond a single FSH reading. Our standard menopause blood test London panel measures, at minimum:

Oestradiol (E2) — the principal oestrogen, central to symptoms and HRT decisions.
FSH and LH — pituitary signalling that rises as ovarian reserve declines.
Progesterone — timed where appropriate to assess luteal function.
Total and free testosterone with SHBG — a key driver of libido, energy, mood and cognition in women.
Full thyroid panel — TSH, fT3, fT4 and thyroid antibodies. Thyroid disease mimics and worsens perimenopausal symptoms.
Prolactin, DHEA-S and cortisol — supporting endocrine and adrenal context.
Ferritin, vitamin D, vitamin B12, folate and HbA1c — nutritional and metabolic markers that strongly influence energy, mood and weight.
Lipid profile — cardiovascular risk rises sharply across the menopause transition.

Timing matters. If you are still cycling, we advise on the optimal cycle day for sampling to make the results genuinely interpretable.

Symptoms that warrant a perimenopause test

Common reasons women book a perimenopause blood test with us include irregular, heavier or shorter cycles, hot flushes and night sweats, disrupted sleep, mood changes, brain fog, persistent fatigue, low libido, vaginal dryness, joint aches, hair thinning, weight gain around the abdomen, palpitations and increased migraines. Perimenopause is one of the most under-investigated phases of women's health — a properly designed panel with expert interpretation changes that.

After your results

Every patient receives a follow-up consultation in which we walk through every marker, identify what needs attention and design a treatment plan. Depending on your results, this may include body-identical HRT (oestrogen, progesterone and where indicated testosterone), evidence-based non-hormonal options, treatment of underlying thyroid, iron or vitamin D deficits, a nutritional and metabolic plan targeted at bone, brain and cardiovascular health, and onward referral to specialist menopause gynaecology, psychology or pelvic health where clinically indicated.

Book your perimenopause blood test in London

Whether you suspect perimenopause, are weighing up HRT or simply want a clear hormonal baseline as you approach this transition, the most efficient first step is a consultation. Your £150 fee is fully redeemable against any test booked within 14 days, ensuring the right panel is chosen the first time.