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Interpret Your Luteinizing Hormone Results
Enter your LH value below and get an instant, free AI interpretation — a plain-English explanation checked against WHO/IFCC reference ranges.
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Luteinizing Hormone Normal Ranges
LH is a gonadotropin hormone secreted by the anterior pituitary.
| Age Group | Sex | Reference Range | Unit | Notes |
|---|---|---|---|---|
| Adults (18–64) | Female | 2.4 – 12.6 | mIU/mL | Follicular phase |
| Adults (18–64) | Female | 14 – 95.6 | mIU/mL | LH surge (ovulation) |
| Adults (18–64) | Male | 1.7 – 8.6 | mIU/mL | — |
Also reported in: IU/L.
Common Causes of High LH
LH surge (normal — signals ovulation)Menopause or premature ovarian insufficiencyPrimary hypogonadism in men (testicular failure)
Common Causes of Low LH
Hypogonadotropic hypogonadism (pituitary or hypothalamic failure)HyperprolactinemiaEating disorders and excessive exercise
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