17-OH Progesterone — What It Means in Your Blood Test
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This is a building-block hormone the body uses on the way to making other adrenal hormones.
A 17-OH Progesterone reading measures an early building-block your body forms along the road to other adrenal hormones. Doctors read it beside related values to judge how those steps are running.
Also known as: 17-Hydroxyprogesterone, 17-OHP, 17-alpha hydroxyprogesterone, 17OHP
This isn't a case where higher or lower is better. Your body keeps it in a narrow band, and both directions can matter.
Last reviewed: 2026-08-16
What does 17-OH Progesterone do in your body?
The glands above your kidneys pass this compound through several steps as they craft cortisol. If one step lags, it backs up here and can spill into extra androgen. When acne, unwanted hair, or cycle shifts raise questions, this figure shows a clinician where that assembly line may be faltering [Endocrine Society, 2018].
What is 17-OH Progesterone?
17-OH Progesterone is an intermediate compound in the chemical pathway that builds cortisol. The adrenal glands and gonads produce it partway through that manufacturing sequence.
Why is 17-OH Progesterone tested?
You may have this test to look into signs of extra androgen (male-type hormone). It also checks how well the adrenal building steps work.
What is a normal 17-OH Progesterone range?
- India
- No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison.
- Global
- Women (follicular): 15–70 ng/dL; Women (luteal): 35–290 ng/dL; Men: 27–199 ng/dL; Children (prepubertal): <100 ng/dL (varies by sex and Tanner stage)
Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
Source: [Endocrine Society, 2018]
What does your 17-OH Progesterone value mean?
There is no widely-accepted set of value bands for this parameter. Compare your result with the reference range printed on your own report, and discuss it with your doctor.
What does a high 17-OH Progesterone result mean?
A high result can suggest that an adrenal step for making cortisol is working less well. Your doctor can help interpret it in your context.
What does a low 17-OH Progesterone result mean?
A low result usually sits within the expected range. It does not typically carry meaning on its own.
What can affect your 17-OH Progesterone result?
- Phase of the cycle in women
- Time of day (morning levels are highest)
- Age and stage of puberty
- Inherited enzyme differences
- Recent illness or stress (a stress signal raises it)
Questions to ask your doctor
About this result
- What does my 17-OH Progesterone result mean for me specifically, given my age and health?
- Is my 17-OH Progesterone in the range that is right for me, not just the lab's general range?
What to do next
- Could anything I eat, do, or take have affected my Adrenal steroid precursor level result?
- Is there anything I should do about my 17-OH Progesterone, or is it fine to leave as it is?
About retesting
- Does my 17-OH Progesterone need to be repeated, and if so, when?
- The typical range for 17-OH Progesterone can vary between labs — should I compare my result against my own lab's printed range?
The bigger picture
- Should my 17-OH Progesterone be looked at together with my Total Testosterone and Free Testosterone result?
- Does my 17-OH Progesterone connect to any condition I already have, or to anything I have noticed in how I feel?
Frequently asked questions
- What is 17-OH Progesterone?
- 17-OH Progesterone is an intermediate compound in the chemical pathway that builds cortisol. The adrenal glands and gonads produce it partway through that manufacturing sequence. You may have this test to look into signs of extra androgen (male-type hormone). It also checks how well the adrenal building steps work.
- What is a normal Adrenal steroid precursor level range?
- A typical adult range is around Women (follicular): 15–70 ng/dL; Women (luteal): 35–290 ng/dL; Men: 27–199 ng/dL; Children (prepubertal): <100 ng/dL (varies by sex and Tanner stage). No India-specific national reference interval is published for this parameter; your lab's printed range is the most reliable comparison. Ranges vary by lab, method and equipment — the range printed on your own report is the one that applies to your result.
- What does a high 17-OH Progesterone result mean?
- A high result can suggest that an adrenal step for making cortisol is working less well. Your doctor can help interpret it in your context.
- What does a low 17-OH Progesterone result mean?
- A low result usually sits within the expected range. It does not typically carry meaning on its own.
- What can affect your 17-OH Progesterone result?
- Several everyday factors can influence it, including Phase of the cycle in women, Time of day (morning levels are highest), Age and stage of puberty, Inherited enzyme differences, Recent illness or stress (a stress signal raises it).
Sources
- Endocrine Society (2018) — Congenital Adrenal Hyperplasia Due to Steroid 21-Hydroxylase Deficiency: An Endocrine Society Clinical Practice Guideline
Part of the Hormones
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