Androstenedione is a steroid hormone that acts as a precursor (building block) for:
Testosterone
Estrogen (estradiol)
It is produced in the:
Adrenal glands
Ovaries (in females)
Testes (in males)
🔬 Where It Fits in Hormone Production
Cholesterol → Pregnenolone → DHEA → Androstenedione →
➡ Testosterone
➡ Estrone (a form of estrogen)
🩺 Why Doctors Test Androstenedione
It helps evaluate:
Excess hair growth (hirsutism)
Irregular menstrual cycles
Early puberty
Suspected adrenal or ovarian disorders
Androgen excess conditions
📌 Conditions Associated With High Levels
Polycystic ovary syndrome (PCOS)
Congenital adrenal hyperplasia (CAH)
Adrenal tumors
Ovarian tumors
📊 Interpretation (General)
| Level | Possible Meaning |
|---|---|
| Normal | Typical hormone balance |
| High | Androgen excess (adrenal or ovarian source) |
| Low | Rare; possible adrenal insufficiency |
Normal ranges vary by age and sex.
📝 Quick Summary
Androstenedione = hormone precursor
Converts into testosterone & estrogen
Tested when androgen imbalance is suspected
Produced by adrenal glands & gonads
If you’d like, share the lab value and reference range, and I can help interpret it.
