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LH (Luteinizing Hormone)

LH Test

LH is a critical pituitary hormone for active individuals, as it regulates sex hormone production that influences recovery, body composition, and training adaptation. Monitoring LH can help detect overtraining-related hormonal disruption.

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.

Your reference range

U/L

1 95,6 U/L

Reference ranges by group, in U/L
Sex	Cycle phase	Menopausal status	Reference range (U/L)	Relative scale
Male	· —	· —	1,7–8,6 U/L	1,7 8,6
Female	· Follicular	· —	2,4–12,6 U/L	2,4 12,6
Female	· Ovulatory	· —	14–95,6 U/L	14 95,6
Female	· Luteal	· —	1–11,4 U/L	1 11,4
Female	· —	· Postmenopausal	7,7–58,5 U/L	7,7 58,5

1 95,6 U/L

Bijsluiterwaarde: 5e-95e percentiel per subgroep (n = 322 mannen; 316 folliculair; 56 ovulatie; 280 luteaal; 132 postmenopauzaal). Een hormoonreferentiewaarde is assay-specifiek; deze waarden gelden voor de Roche Elecsys-methode.

Source: Roche Diagnostics Reference population: Roche referentiecohort (Elecsys LH bijsluiter)

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

LH (Luteinizing Hormone): what this test measures

This test measures the concentration of luteinizing hormone in your blood. LH is produced by the anterior pituitary gland and works together with FSH to regulate the reproductive system, including gonadal steroid production and gamete maturation.

LH (Luteinizing Hormone): why this value matters

For performance-focused individuals, LH levels can indicate whether intense training is suppressing the reproductive hormone axis. Maintaining healthy LH levels may support optimal recovery and sustained physical performance.

LH (Luteinizing Hormone): when is testing worthwhile?

Testing may be recommended when investigating fertility concerns, irregular menstrual cycles, suspected pituitary disorders, or symptoms of hormonal imbalance. Your healthcare provider will advise on the optimal day of your cycle for testing.

LH (Luteinizing Hormone): symptoms of a high or low value

Low Levels

Some people with low LH may experience absent or irregular menstrual periods, decreased libido, fatigue, or difficulty conceiving. In men, low LH may be associated with reduced testosterone production.

High Levels

Elevated LH levels may be associated with polycystic ovary syndrome in women, primary gonadal failure, or menopause. In men, high LH could suggest primary testicular dysfunction.

LH (Luteinizing Hormone): what to do about an abnormal value

Male

If Low

Low LH may indicate pituitary dysfunction or secondary hypogonadism. Consider comprehensive endocrine evaluation.

If High

Elevated LH may indicate primary testicular failure. Consult with an endocrinologist for testosterone assessment.

Female

If Low

Low LH may indicate pituitary dysfunction or hypothalamic amenorrhea. Consider evaluation for eating disorders, excessive exercise, or stress.

If High

High LH may indicate PCOS or menopause. If in reproductive age with irregular cycles, consider PCOS evaluation.

LH (Luteinizing Hormone): lifestyle and this value

Maintaining a healthy weight, managing stress, and ensuring adequate sleep may support balanced LH levels. Extreme exercise or very low body fat can sometimes disrupt pituitary hormone production. Consult your healthcare provider for guidance.

LH (Luteinizing Hormone): frequently asked questions

What role does LH play in ovulation?

LH triggers ovulation by causing the dominant follicle to release a mature egg. The LH surge typically occurs about 24-36 hours before ovulation and is often used to predict fertile windows.

Why might LH levels be high after menopause?

After menopause, the ovaries no longer respond to LH. The pituitary gland produces more LH in an attempt to stimulate the ovaries, resulting in elevated levels.

Can stress affect LH levels?

Yes, significant physical or emotional stress may suppress LH production by affecting the hypothalamic-pituitary axis. This can sometimes lead to menstrual irregularities or reduced fertility.

Test Products

This marker is included in the following test panels.

Whoop

Whoop Metabolic Health

A 51-biomarker metabolic panel inspired by the WHOOP Metabolic Health Panel — blood sugar regulation, insulin, thyroid, liver and the mineral cofactors behind your metabolism.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) Leptin Zinc Selenium Iodine Copper Free T3 (Triiodothyronine) Free T4 (Thyroxine) GGT (Gamma-Glutamyl Transferase)

€799,-

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A 43-biomarker comprehensive health panel inspired by WHOOP Advanced Labs — a deep look at metabolism, cardiovascular risk, hormones, liver, kidney and inflammation.

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 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,-

Whoop

Whoop Heart Health

A 45-biomarker heart health panel inspired by the WHOOP Heart Health Panel — an advanced look at cholesterol, lipoproteins, inflammation and kidney function.

€629,-

Whoop

Whoop Performance Health

A 50-biomarker performance panel inspired by the WHOOP Performance Health Panel — recovery, blood production, thyroid, hormones, iron and nutrient status for people who train.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) IGF-1 (Insulin-like Growth Factor) Creatine Kinase (CK) Reticulocytes Free T3 (Triiodothyronine) Free T4 (Thyroxine) Vitamin B12 Folate (Folic Acid)

€689,-

Whoop

Whoop Women's Health

A 53-biomarker women's health panel inspired by the WHOOP Women's Health Panel — fertility, cycle and thyroid hormones plus a complete metabolic and nutrient base.

Complete Blood Count (CBC) Leukocyte Differential ALP (Alkaline Phosphatase) ALT (Alanine Aminotransferase) AST (Aspartate Aminotransferase) Albumin Total Protein Bilirubin (Total) ApoB (Apolipoprotein B) Total Cholesterol LDL Cholesterol HDL Cholesterol Triglycerides Lipoprotein(a) Urea (BUN) Creatinine eGFR (Estimated Glomerular Filtration Rate) Calcium Bicarbonate Chloride Sodium Potassium Magnesium Cortisol DHEA-S Estradiol (E2) FSH (Follicle Stimulating Hormone) LH (Luteinizing Hormone) SHBG (Sex Hormone Binding Globulin) Total Testosterone Free Testosterone TSH (Thyroid Stimulating Hormone) Glucose (Fasting) HbA1c (Glycated Hemoglobin) Insulin (Fasting) HOMA-IR CRP (C-Reactive Protein) Homocysteine Ferritin Iron (Serum) Transferrin Transferrin Saturation Vitamin D (25-OH) AMH (Anti-Müllerian Hormone) Progesterone Prolactin TPO Antibodies Free T3 (Triiodothyronine) Free T4 (Thyroxine) Leptin Vitamin B12 Folate (Folic Acid) Phosphorus

€709,-

Whoop

Whoop Men's Health

A 48-biomarker men's health panel inspired by the WHOOP Men's Health Panel — testosterone, PSA and prostate health plus a complete metabolic and hormone base.

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

€659,-