What FSH level indicates menopause? This complete guide covers FSH ranges by stage, and what you can do to support your body as FSH rises. Follicle-stimulating hormone (FSH) is a hormone that plays a role in sexual development and reproduction by affecting the function of the ovaries and testes. The follicle-stimulating hormone (FSH) test looks at how much of this hormone you have through a blood or urine test. FSH helps both men and women in reproduction. Follicle-stimulating hormone (FSH) is an important part of men and women’s reproductive systems. The FSH test looks at the level of the hormone in your blood. Follicle-stimulating hormone (FSH) is crucial for both men's and women's reproductive health and can be measured with a blood test. High FSH levels can indicate that your body is having difficulty producing quality eggs or sperm. Follicle-stimulating hormone (FSH) plays an integral role in reproductive processes. Doctors can test FSH levels to assess fertility, among other things. Follicle-Stimulating Hormone (FSH) helps stimulate the growth of ovarian follicles during your menstrual cycle. As you age, it’s normal to see an increase in your FSH levels. This is because, over time, the number of eggs you have naturally decreases. Follicle-stimulating hormone (FSH) is a gonadotropin, a glycoprotein polypeptide hormone. [1]. FSH is synthesized and secreted by the gonadotropic cells of the anterior pituitary gland [2] and regulates the development, growth, pubertal maturation, and reproductive processes of the body. This test measures the level of follicle-stimulating hormone (FSH) in your blood. FSH affects sexual development in children and fertility in adults. Learn more. Follicle-stimulating hormone (FSH) is produced by the pituitary gland, a pea-sized structure at the base of your brain, and it plays a central role in fertility for both men and women.