What Blood Tests Should Women Over 40 Get?
The decade when hormones, thyroid, metabolism, and bone health all begin shifting at once — and the panel that makes those shifts visible.
Board-Certified Nurse Practitioner, Trained in Functional/Integrative Medicine and Bioidentical Hormone Balancing
Why 40 changes the picture
Perimenopause typically begins in the late 30s or 40s, often a decade before the final period. Progesterone tends to decline first, estradiol becomes erratic rather than simply low, and cycles can stay regular while symptoms are already significant.
At the same time, muscle mass declines gradually, insulin sensitivity tends to fall, thyroid autoimmunity becomes more common, and cardiovascular risk begins to rise. These are separate systems that produce overlapping symptoms — which is exactly why testing them together matters.
Hormone markers worth measuring
- Estradiol and progesterone — timed to the cycle where cycles are still present
- FSH and LH — helpful for context, though highly variable in perimenopause
- Total and free testosterone with SHBG — energy, libido, muscle, and mood
- DHEA-S — adrenal androgen output
- Cortisol — stress physiology that shapes sleep, weight, and thyroid conversion
Thyroid, metabolic, and cardiovascular markers
| Marker | Why it belongs after 40 |
|---|---|
| Full thyroid panel | Thyroid disease is far more common in women; TSH alone misses conversion and autoimmunity |
| Fasting insulin | Insulin sensitivity falls with the hormonal transition, often before weight changes |
| A1C and fasting glucose | Confirms whether glycemic control has begun to shift |
| ApoB | Cardiovascular risk accelerates after menopause; ApoB reads it more directly than LDL-C |
| Lipoprotein(a) | Once in a lifetime, ideally before decisions about risk management |
| hs-CRP | Inflammation compounds both cardiovascular and metabolic risk |
| Ferritin and iron studies | Heavy perimenopausal bleeding is a common cause of depleted stores |
| Vitamin D and B12 | Bone, mood, immune function, and energy |
When symptoms and labs seem to disagree
Fatigue, weight gain, brain fog, poor sleep, hair thinning, and low mood are attributable to at least four different systems in this decade. Testing only one — the usual TSH — and finding it normal does not clear the others.
The value of a wide panel here is not that everything will be abnormal. It is that you can see which system is actually drifting, and stop guessing.
Frequently asked questions
When in my cycle should hormones be tested?
If you are still cycling, progesterone is most informative roughly seven days after ovulation — around day 19–22 of a 28-day cycle. Estradiol and FSH are often drawn on day 3. If cycles are irregular or have stopped, timing matters less and the pattern across markers matters more.
Is an at-home hormone test accurate for women over 40?
Blood testing through a laboratory draw is accurate regardless of who ordered it. What varies is which markers are included and how well the results are interpreted — a hormone value without cycle context and without thyroid and metabolic markers alongside it is easy to misread.
Do I need testing if my periods are still regular?
Regular cycles do not rule out perimenopausal change. Progesterone often declines while cycle length is still normal, and thyroid or iron issues can produce identical symptoms.
Want to see your own data?
ClearSignal's Female Comprehensive Hormone Panel covers sex hormones, a full thyroid workup, and the metabolic and inflammatory markers that interact with them — read together, by a specialist, rather than one marker at a time.
Female Comprehensive Hormone Panel
87 biomarkers · $498
A hormone panel covering sex hormones, a full look at thyroid, and metabolic interactions to identify imbalances affecting energy, mood, and body composition.
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About the author
Erica Finnan, MSN, APRN-C
Board-Certified Nurse Practitioner, Trained in Functional/Integrative Medicine and Bioidentical Hormone Balancing
Founder, ClearSignal Health
Erica Finnan is a board-certified nurse practitioner trained in functional and integrative medicine and bioidentical hormone balancing. She personally reviews every ClearSignal lab report.
Read full author profileReferences
Medical Disclaimer
The content on this blog is provided for educational and informational purposes only. It is not intended to be, and should not be taken as, medical advice, diagnosis, or treatment.
Reading this content does not create a patient-provider relationship between you and ClearSignal Health, Erica Finnan, or any clinician affiliated with ClearSignal. Nothing here is a substitute for individualized care from a licensed healthcare professional who knows your health history.
ClearSignal Health's specialist-led lab review service is a separate, dedicated offering — distinct from this blog — designed to give you an in-depth, personalized interpretation of your own results. If you have specific questions about your health, your labs, or a condition mentioned in this article, please consult your own healthcare provider or order a review through ClearSignal.
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