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Hormones

17-OH Progesterone levels: what this blood test measures

17-OH Progesterone is a steroid hormone that plays an important role in your hormonal balance. It serves as a building block for cortisol and androgens, and its levels may fluctuate throughout your menstrual cycle.

Doctor's Assessment Included

Reference Ranges

Female
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

Understanding your 17-OH Progesterone levels may help provide insights into your hormonal health and cycle regularity. Levels outside the expected range could suggest adrenal or hormonal considerations worth discussing with your healthcare 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.

Fertility & Pregnancy

IVF Blood Test Complete (Women)

Everything in the IVF panel plus full thyroid, preconception nutrients, progesterone and CMV immunity.

TSH (Thyroid Stimulating Hormone) Prolactin AMH (Anti-Müllerian Hormone) Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) Free T4 (Thyroxine) Folate (Folic Acid) Vitamin B12 Ferritin Progesterone Vitamin D (25-OH) Chlamydia IgG HIV 1/2 Antibody + p24 Antigen Syphilis Screening Blood Type + Rh TPO Antibodies CMV IgG Hepatitis B Core Antibody Hepatitis B Surface Antigen Hepatitis C Antibody Rubella IgG Toxoplasmosis IgG Varicella Zoster D-Dimer Basic Blood Count
€495,-
Fertility & Pregnancy

IVF Blood Test (Women)

Complete female IVF intake panel: ovarian reserve, thyroid, infectious screening, immunity serology, blood group and CBC.

TSH (Thyroid Stimulating Hormone) Prolactin AMH (Anti-Müllerian Hormone) Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) Chlamydia IgG HIV 1/2 Antibody + p24 Antigen Syphilis Screening Blood Type + Rh Hepatitis B Core Antibody Hepatitis B Surface Antigen Hepatitis C Antibody Rubella IgG Toxoplasmosis IgG Varicella Zoster D-Dimer Basic Blood Count
€425,-

17-OH Progesterone

€81,-