Reviewed: 13. Juli 2026
LH Luteinizing Hormone (LH)
Unit: IU/l
Quick Explanation
LH triggers ovulation in women and stimulates testosterone production in men. The value is often measured together with FSH, such as with cycle disorders, fertility concerns, or suspected gonad dysfunction.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Ovulation (brief rise)
- ·Menopause
- ·Polycystic ovary syndrome
Value too low — possible causes
- ·Pituitary gland disorder
- ·Significant weight loss or competitive sports
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →What does the ratio of LH to FSH show in my case?
- →Is my cycle or hormone function normal?
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Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.