In men, Follicle-Stimulating Hormone (FSH) is a crucial hormone that primarily stimulates the production of sperm. A test measuring FSH levels is often used to diagnose or evaluate infertility issues.
Understanding FSH's Role
FSH plays a vital role in male reproductive health. Here's a breakdown:
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Sperm Production: The primary function of FSH in men is to stimulate the Sertoli cells within the testicles, which are essential for sperm production (spermatogenesis).
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Diagnostic Tool: Measuring FSH levels helps doctors assess a man's reproductive function. According to the reference, FSH tests are used to help diagnose or evaluate:
- Problems becoming pregnant, or infertility.
- Men who do not have testicles or whose testicles are underdeveloped.
FSH Testing and Infertility
High or low FSH levels can indicate different underlying issues affecting fertility.
High FSH Levels
Elevated FSH levels might suggest:
- Testicular Failure: The testicles are not responding to FSH, possibly due to damage or disease.
- Klinefelter Syndrome: A genetic condition where a male has an extra X chromosome (XXY).
Low FSH Levels
Low FSH levels might indicate:
- Hypothalamic or Pituitary Issues: Problems with the hypothalamus or pituitary gland can lead to insufficient FSH production. These glands control hormone release.
- Anabolic Steroid Use: External testosterone can suppress FSH production.
