Follicle-Stimulating Hormone (FSH) stimulates follicle & spermatogenesis development in the reproductive organs. Abnormal FSH levels may cause infertility in both men and women, or delayed/early puberty in children.
| Age | Male | Female |
| Before puberty | < 5mIU/ml | < 4mIU/ml |
| In Puberty | 0.3-10mIU/ml | |
| Adult | 1.5-12.4mIU/ml | - |
| Menstruating | - | 4.7-21.5mIU/ml |
| Postmenopausal | - | 25.8-134.8mIU/ml |
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