What is follicle stimulating hormone?
Follicle stimulating hormone (FSH) is a naturally occurring hormone. FSH is important in the development of follicles (eggs) produced by the ovaries. FSH is also important in the development of sperm. Follicle stimulating hormone is used to stimulate a follicle (egg) to develop and mature. It is used when a woman desires pregnancy and her ovaries can produce a follicle but hormonal stimulation is not sufficient to make the follicle mature. Follicle stimulating hormone is also used to stimulate the development of multiple eggs for in vitro fertilization. Follicle stimulating hormone can be used by men to increase the production of sperm. Follicle stimulating hormone may also be used for purposes other than those listed in this medication guide.