Male Hormone Levels |
Hormone to Test |
Normal Values |
What value means |
|
Testosterone |
270-1100 ng/dl |
Testosterone production is stimulated by Leydig cells in the testicles. Low levels of testosterone combined with low FSH and LH are diagnostic of hypogonadotropic hypogonadism. |
|
Free Testosterone |
.95-4.3 ng/dl |
|
|
% Free Testosterone |
.3% - 5% |
A normal male has about 2% free, unbound testosterone |
|
Follicle Stimulating Hormone (FSH) |
1-18 mIU/ml |
Basic hormone testing for males often only includes FSH and testosterone. |
|
Prolactin |
< 20 ng/ml |
A level two or three times that of normal may indicate a pituitary tumor, such as a prolactinoma, which may lead to decreased sperm production. Elevations can be treated with bromocriptine. |
|
Luteinizing Hormone (LH) |
2-18 mIU/ml |
LH stimulates Leydig cells and production of testosterone. A problem with LH levels alone is rarely seen, so testing is only needed if testosterone level is abnormal. |
|
Estradiol (E2) |
10-60 pg/ml |
|
|
Progesterone (P4) |
.3-1.2 ng/ml |
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