Follicle-Stimulating Hormone (FSH)
Updated:Follicle-Stimulating Hormone (FSH) is a crucial reproductive hormone produced by the pituitary gland in both males and females. In people with ovaries, FSH stimulates the growth and development of ovarian follicles, which contain eggs. In people with testes, FSH plays a vital role in sperm production. This hormone is essential for sexual development, fertility, and maintaining reproductive function throughout adulthood.
Additional Information
FSH works in conjunction with other reproductive hormones, particularly Luteinizing Hormone (LH), to regulate the menstrual cycle and ovulation in females, and to support spermatogenesis in males. FSH levels naturally fluctuate throughout the menstrual cycle and change with age. In females, FSH levels rise significantly during menopause.
Measuring FSH levels through blood tests can provide valuable information about a person's reproductive health and fertility status. Abnormal FSH levels may indicate various conditions, including infertility, polycystic ovary syndrome (PCOS), or primary ovarian insufficiency.
Examples
A fertility specialist might order an FSH test to assess a woman's ovarian reserve and potential for conception.
In males undergoing fertility treatment, FSH levels may be monitored to evaluate and support sperm production.