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As in women, men produce follicle-stimulating hormone (FSH) and
luteinizing hormone (LH) in their pituitary glands. The pituitary
gland is, in turn, controlled by an area in a man's brain known
as the hypothalamus, which sends out a hormone known as GnRH, or
gonadotropin-releasing hormone. GnRH “tells” the man's pituitary
when to release FSH and LH.
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A man's LH travels to his testes where it stimulates Leydig Cells
to produce testosterone, the male hormone. Then, testosterone, along
with FSH, stimulates Germ Cells in the testes to produce sperm.
Any disruption in this system may interfere with a man's ability
to produce sperm, as well as his ability to successfully engage
in sexual intercourse.
To learn more about the male causes of infertility, select from
the list of topics below:
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