Follicle-Stimulating Hormone (FSH) is a hormone produced and secreted by gonadotropes in the anterior pituitary gland.
Excessive FSH and Luteinizing Hormone (LH) are found in hypogonadism, gonadal failure, complete testicular feminization syndrome, menopause, Klinefelter syndrome, alcoholism, and lack of testes. Follicle-Stimulating Hormone (FSH) and LH are pituitary products, useful to distinguish primary gonadal failure from secondary (hypothalamic/pituitary) causes of gonadal failure, menstrual disturbances and amenorrhea. It is useful in defining menstrual cycle phases during infertility evaluation of women and in testicular dysfunction in men. Follicle-Stimulating Hormone is commonly used with LH, which also is a gonadotropin. Both are found to be low when a person has pituitary or hypothalamic failure. FSH and LH levels are high following menopause.
Follicle-stimulating hormone (FSH) is produced by the pituitary gland. In women, it helps control the menstrual cycle and the production of eggs by the ovaries. The amount of FSH varies throughout a woman's menstrual cycle and is highest just before she releases an egg (ovulates). In men, Follicle-Stimulating Hormone helps control the production of sperm. The amount of FSH in men normally remains constant.
The amounts of Follicle-Stimulating Hormone and other hormones (luteinizing hormone, estrogen, and progesterone) are measured in both a man and a woman to determine why the couple cannot achieve pregnancy (infertility). The amount of FSH can help determine whether male or female sex organs (testicles or ovaries) are functioning properly.
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