science Lab Test

Hormone Panel: What Your Results Mean

A hormone panel measures key hormones that regulate reproduction, metabolism, stress response, and mood. This panel typically includes testosterone, estradiol (the primary oestrogen), and cortisol. Together, these three markers provide a snapshot of your sex hormone balance and adrenal function — two systems that are deeply interconnected and that influence energy, body composition, libido, and emotional well-being.

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What It Tests

This panel measures testosterone (the primary androgen governing sex drive, muscle mass, and bone density in both men and women), estradiol (the main oestrogen regulating reproductive cycles, bone health, and cardiovascular function), and cortisol (the adrenal stress hormone that affects energy, inflammation, and immune regulation).

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Why It's Ordered

Doctors order a hormone panel to investigate symptoms of hormonal imbalance such as fatigue, low libido, mood disturbances, irregular periods, weight changes, or infertility. It is also used to monitor hormone replacement therapy, evaluate adrenal function, screen for polycystic ovary syndrome (PCOS), and assess hypogonadism in men.

Markers in This Test

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Cortisol
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Estradiol (E2)
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Testosterone
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Frequently Asked Questions

Do I need to fast before a hormone panel? expand_more
Fasting is not required for most hormone tests, but the timing of the blood draw matters significantly. Testosterone and cortisol should both be measured in the early morning (7–10 AM) when levels are naturally highest. For women, the phase of the menstrual cycle affects estradiol and testosterone, so your doctor may specify when to test.
What does it mean if all three hormones are low? expand_more
Low testosterone, estradiol, and cortisol together may indicate adrenal insufficiency, hypopituitarism (the pituitary gland not producing enough stimulating hormones), or severe chronic illness. This combination warrants urgent medical evaluation and further testing of the hypothalamic-pituitary-adrenal and gonadal axes.
Can stress affect my hormone panel results? expand_more
Yes. Acute psychological or physical stress causes a surge in cortisol. Chronically elevated cortisol can suppress both testosterone and estradiol production. This is why athletes overtrained or individuals under prolonged stress often show hormonal imbalances — the body prioritises the stress response over reproductive function.
What is the difference between a basic hormone panel and a full hormone panel? expand_more
A basic panel typically covers testosterone, estradiol, and cortisol. A comprehensive or full hormone panel may additionally include FSH, LH, prolactin, progesterone, DHEA-S, free testosterone, SHBG, and thyroid hormones. The scope depends on the clinical question being investigated.
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