FSH in Serum

FSH is a hormone made by the pituitary gland which is involved in reproduction that stimulates the growth and maturation of eggs in women and sperm in men.
Also known as:
Follicle stimulating hormone
S-FSH
.

FSH ranges for

Interpret your result
"Normal" lab range for FSH is between 1.5 and 12.4 IU/L for males:
1.5
12.4
According to Peter Attia, FSH should be between 1.5 and 12.4 IU/L for males:
1.5
12.4
According to OptimalDX, FSH should be between 1.6 and 8 IU/L for males:
1.6
8
Optimal range
Optimal range for FSH appears to be between 1.6 and 10 IU/L for males:
0
1.6
10
12.4
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 FSH:

  • Low FSH usually suggests reduced hypothalamic or pituitary drive.

    In men, it may be seen with secondary hypogonadism and can impair spermatogenesis and fertility.

    In women, it may be seen with hypothalamic or pituitary dysfunction, caloric deficit, low body weight, excessive exercise, and functional hypothalamic amenorrhea.

    ,

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