FSH (Follicle-Stimulating Hormone)

FSH in Women:

• Menstrual Cycle: FSH helps stimulate the growth of ovarian follicles (which contain eggs) in women. FSH levels fluctuate throughout the menstrual cycle, and testing them can help assess ovarian function.
  • Follicular Phase: FSH levels are higher at the beginning of the cycle to stimulate the growth of follicles.
  • Ovulation: A surge in FSH occurs just before ovulation, helping to release the egg.
  • Menopause: FSH levels rise significantly as a woman approaches menopause, because the ovaries produce less estrogen and progesterone.
• Fertility Testing: An FSH test is often used to evaluate fertility. High levels of FSH in women, especially if they are older, may indicate a diminished ovarian reserve (lower egg count) or early menopause.

FSH in Men:

• Sperm Production: In men, FSH stimulates the production of sperm in the testes. Low FSH levels in men can suggest issues with the pituitary gland or testes, affecting fertility