LH in Serum

Pituitary LH stimulates testicular testosterone production in men. In women, it supports ovarian steroid production and triggers ovulation. LH distinguishes primary from secondary hypogonadism.
Also known as:
Luteinizing hormone
S-LH
Lutropin
ICSH
.

LH ranges for

Interpret your result
"Normal" lab range for LH is between 1.7 and 8.6 IU/L for males:
1.7
8.6
According to Peter Attia, LH should be between 1.7 and 8.6 IU/L for males:
1.7
8.6
According to OptimalDX, LH should be between 1.5 and 6.15 IU/L for males:
1.5
6.15
Optimal range
Optimal range for LH appears to be between 1.7 and 7 IU/L for males:
0
1.7
7
8.6
25
Why this optimal range?
Preliminary range is based on functional health organizations including but not limited to those listed above.
Your interpretation
For low
For high

Common reasons for low LH:

  • Low LH usually suggests reduced hypothalamic or pituitary drive, especially when sex steroid levels are also low. Causes include hypothalamic-pituitary disorders, hyperprolactinemia, functional suppression from undernutrition, excessive exercise / low energy availability, severe stress or systemic illness, and suppressive medications or exogenous androgens. In men, low or inappropriately normal LH with low testosterone suggests secondary hypogonadism.

    ,

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Zsolt Szabo
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I am particularly interested in research on biomarkers associated with all-cause mortality and on defining optimal reference ranges.