Blood Tests Every Woman Should Consider in London
Author: Dr Lauren Holland, Clinical Lead – Marylebone Diagnostic Centre
Many women feel “not quite right.” You may feel tired even after sleep. Your weight may change without reason. Your mood may feel unstable. Your digestion may feel off. Often, tests are described as “normal.” However, symptoms persist. In many cases, the issue is not one problem, but several subtle imbalances.
Why Symptoms Are Often Missed in Women
Women’s symptoms overlap across systems. For example:
- Fatigue may be hormonal
- Anxiety may be nutritional
- Weight gain may be metabolic
- Bloating may be hormonal or inflammatory
Testing only one marker rarely explains the full picture.
Common Symptoms and What They May Indicate
Ongoing Fatigue
Fatigue is one of the most common complaints. It may be linked to:
- Low iron or ferritin
- Low vitamin B12
- Thyroid imbalance
- Chronic inflammation
- Blood sugar instability
Fatigue is not always caused by stress.
Bloating and Digestive Discomfort
Bloating is often dismissed as dietary. However, blood markers may reveal:
- Hormonal imbalance
- Liver stress
- Inflammation
- Metabolic strain
Hormones influence gut function more than many realise.
Anxiety or Low Mood
Mood symptoms are often linked to:
- Thyroid hormones
- Vitamin D levels
- B12 and folate
- Cortisol (stress hormone)
Blood testing helps identify physiological contributors.
Weight Gain or Difficulty Losing Weight
Weight changes may occur even with a healthy lifestyle. Common contributors include:
- Insulin resistance
- Thyroid imbalance
- Elevated cortisol
- Hormonal changes
Blood testing helps identify the driver.
Hair Thinning or Hair Loss
Hair health is sensitive to internal balance. Low levels of:
- Iron
- Ferritin
- Thyroid hormones
can affect hair growth cycles.
Irregular Periods or Cycle Changes
Cycle changes are often hormonal. Possible contributors include:
- Oestrogen imbalance
- Progesterone changes
- Thyroid dysfunction
- Stress hormone disruption
Blood tests provide clarity.
Blood Tests Commonly Linked to These Symptoms
The following table shows how symptoms often overlap with blood markers.
| Symptom | Blood Areas Often Involved |
|---|---|
| Fatigue | Iron, B12, thyroid, inflammation |
| Anxiety | Thyroid, vitamins, cortisol |
| Weight gain | Glucose, thyroid, cortisol |
| Bloating | Liver markers, hormones |
| Hair loss | Iron profile, thyroid |
| Poor sleep | Cortisol, inflammation |
| Brain fog | B12, glucose, thyroid |
Why Testing Multiple Systems Matters
Symptoms rarely come from one system alone. For example:
- Stress alters hormones
- Hormones affect metabolism
- Metabolism affects energy
Testing systems together gives better insight.
Which Test Covers These Symptoms Best?
A multi-system profile is usually more helpful than single tests. Marylebone Advanced Female Health Screening includes:
- Hormones
- Thyroid
- Iron
- Vitamins
- Metabolic markers
- Stress hormone
- Inflammation
This supports a clearer understanding of symptoms.
Who Should Consider Symptom-Led Testing?
This approach is helpful if you:
- Feel tired without explanation
- Are gaining weight unexpectedly
- Feel anxious or low
- Have digestive symptoms
- Want answers, not reassurance
It is also useful as a baseline.
What Happens After Testing?
You attend your appointment in Marylebone. Blood samples are taken on-site. Results are delivered quickly. Follow-up testing can be added if needed.
Symptoms are signals. Testing helps you listen to them.
📍 73 Baker Street, London W1U 6RD
🚇 5-minute walk from Baker Street tube
🕘 Monday–Saturday, 8:00–16:00
📞 +44 7495 970109
🌐 marylebonediagnosticcentre.com
Results within 24–42 hours depending on the test.










