What is Androstenedione?
Androstenedione is an androgen precursor made by the adrenal glands and gonads. The body can convert it into testosterone and into oestrogens, which is why it is read alongside testosterone, DHEA-S, LH/FSH, 17-OH progesterone, cortisol and any clinical context rather than on its own.
Androstenedione is most useful as part of an androgen panel — together with total and free testosterone, DHEA-S, SHBG, 17-OH progesterone and (in females) LH/FSH and cycle context. Timing matters: in menstruating individuals the value can shift with cycle phase, and morning samples are usually preferred because adrenal output follows a daily rhythm. Persistent elevation, especially with symptoms, is typically followed up with dynamic testing (such as ACTH stimulation) rather than a single value.
Why might Androstenedione be low?
A low androstenedione can relate to adrenal or gonadal output, age (levels naturally fall with age), certain medications, or the broader hormonal picture. It is usually interpreted together with DHEA-S, testosterone and the pituitary signals (LH, FSH, ACTH) rather than on its own. Reference ranges vary by lab, sex and age; a single low value is reviewed in context.
This information is educational. A single out-of-range result is rarely the whole picture — a healthcare professional can interpret your numbers alongside your overall health and history.
Context questions that matter
- →Was this result slightly or clearly outside the reference range?
- →Were related markers also high or low?
- →Is this new compared with previous tests?
- →Could recent illness, exercise, fasting, alcohol, supplements, or medication affect it?
- →Do you have symptoms that should be discussed with a clinician?
Lifestyle considerations
- •Note time of day and (if relevant) menstrual cycle phase — both shift androstenedione meaningfully
- •Read alongside total/free testosterone, DHEA-S, SHBG and 17-OH progesterone for context
- •A single mildly raised value is often rechecked or followed up with dynamic testing rather than acted on alone
Questions to ask your doctor
- →Could time of day, cycle phase, stress, sleep, medication or supplements affect this result?
- →How does this compare with related hormones such as LH, FSH, testosterone, estradiol, prolactin, cortisol or DHEA-S?
- →Is this a one-time result, or part of a pattern that needs repeat testing?
Don't guess from one flagged result.
Start with the most relevant panel and see how your markers fit together in plain English.
Frequently asked questions
What does low Androstenedione mean?
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A low androstenedione can relate to adrenal or gonadal output, age (levels naturally fall with age), certain medications, or the broader hormonal picture. It is usually interpreted together with DHEA-S, testosterone and the pituitary signals (LH, FSH, ACTH) rather than on its own. Reference ranges vary by lab, sex and age; a single low value is reviewed in context.
What is Androstenedione?
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Androstenedione is an androgen precursor made by the adrenal glands and gonads. The body can convert it into testosterone and into oestrogens, which is why it is read alongside testosterone, DHEA-S, LH/FSH, 17-OH progesterone, cortisol and any clinical context rather than on its own.
Does timing matter for hormone tests?
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Often yes. Time of day, menstrual cycle phase, sleep, acute stress, medications and supplements can all affect hormone results. Morning samples and same-time-of-day repeat testing are typically preferred for hormones with a daily rhythm.
Should hormone results be compared with related hormones?
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Yes — hormones are usually interpreted as patterns. TSH is read with Free T4 and Free T3; testosterone is read with LH, FSH and SHBG; cortisol is read with ACTH and the time of day. Single values out of context can be misleading.
What supports healthy Androstenedione levels?
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Note time of day and (if relevant) menstrual cycle phase — both shift androstenedione meaningfully. Read alongside total/free testosterone, DHEA-S, SHBG and 17-OH progesterone for context. A single mildly raised value is often rechecked or followed up with dynamic testing rather than acted on alone