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endocrinology
Luteinizing Hormone
LH
Clinical Overview
LH triggers ovulation in women and testosterone production in men. The LH surge signals the best time for conception. Elevated LH in women may indicate PCOS or premature ovarian failure.
Reference RangesWHO/IFCC standards
| 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 |
| Adults (18–64) | Male | 1.7 – 8.6 | mIU/mL | — |
Also reported in: IU/L.
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Related Topics
fertilityovulationPCOSreproductive