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Hormones

17-OH Progesterone levels: what this blood test measures

17-OH Progesterone is a precursor hormone involved in cortisol and androgen synthesis. For active individuals, this marker may provide insight into how your body manages stress hormones and supports recovery and performance.

Doctor's Assessment Included

Reference Ranges

See the value that applies to you:

Choose male or female — this range differs by sex.

Enter your age — this range changes with age.

This range also depends on context such as cycle phase or sample material; the highlighted rows apply to your group.

Male Your group
nmol/L
Low 1 Normal 10 High
Female Your group
nmol/L
Low 0.3 Normal 7.5 High

Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.

Check your own value

What It Measures

This test measures the level of 17-hydroxyprogesterone in your blood. Elevated or reduced levels may indicate how effectively your adrenal glands and gonads are producing cortisol and sex hormones from this essential precursor.

Why It Matters

For active individuals, 17-OH Progesterone levels may reflect adrenal stress response and recovery capacity. Monitoring this marker could help identify imbalances that might affect training adaptation. Discuss results with your sports medicine provider.

When to Test

Testing may be recommended when symptoms of adrenal dysfunction or hormonal imbalance are present. Your healthcare provider might suggest early morning testing, as levels follow a diurnal pattern and are typically highest in the morning.

Symptoms

Low Levels

Some people may experience fatigue, low blood pressure, or salt cravings when 17-OH Progesterone levels are below the expected range. These symptoms could suggest insufficient adrenal hormone production. A healthcare provider can help determine the cause.

High Levels

Some people may experience acne, excess body hair, or irregular menstrual cycles when 17-OH Progesterone levels are elevated. High levels could suggest an enzyme deficiency in the adrenal pathway. Discuss results with your healthcare provider.

Lifestyle Tips

Managing stress through regular exercise, adequate sleep, and relaxation techniques may support healthy adrenal function. A balanced diet rich in vitamins and minerals could also contribute to optimal hormone production. Always consult your healthcare provider for guidance.

Frequently Asked Questions

What is 17-OH Progesterone?
It is a steroid hormone precursor used by your body to produce cortisol and sex hormones.
Why would my doctor test this?
Your doctor may test it to evaluate adrenal gland function or investigate hormonal imbalances.
Do levels change during the day?
Yes, levels typically follow a diurnal pattern and are usually highest in the early morning.

Tests with related values

These panels measure values from the same category as this marker.

Whoop

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SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol Cortisol DHEA-S Estradiol (E2) Free Testosterone FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) Total Testosterone Bicarbonate Calcium Chloride Ferritin Iron (Serum) Magnesium Potassium Sodium Transferrin CRP (C-Reactive Protein) Homocysteine Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Omega-3 Index Total Cholesterol Albumin HOMA-IR ALP (Alkaline Phosphatase) AST (Aspartate Aminotransferase) Bilirubin (Total) Total Protein Urea (BUN) Creatinine Vitamin D (25-OH) eGFR (Estimated Glomerular Filtration Rate) Insulin (Fasting) Leukocyte Differential Transferrin Saturation Lipoprotein(a) Triglycerides Basic Blood Count
€499,-
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InsideTracker

A 36-biomarker performance and longevity panel inspired by InsideTracker Ultimate — covering heart, hormones, metabolism, inflammation, recovery and iron status.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol GGT (Gamma-Glutamyl Transferase) Cortisol DHEA-S Estradiol (E2) Free Testosterone Total Testosterone Folate (Folic Acid) Vitamin B12 Calcium Ferritin Iron (Serum) Magnesium Magnesium (Intracellular) Potassium Progesterone Sodium Transferrin CRP (C-Reactive Protein) Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Total Cholesterol Albumin AST (Aspartate Aminotransferase) Vitamin D (25-OH) Insulin (Fasting) Leukocyte Differential Creatine Kinase (CK) Transferrin Saturation Triglycerides Basic Blood Count
€399,-

17-OH Progesterone

€81,-