What Is the Relationship Between FSH and LH?

Luteinizing hormone (FH) and follicle stimulating hormone (FSH) are both known as gonadotropins because they stimulate the gonads in both males and females to produce steroid hormones. In males, these two hormones stimulate the testes, and in females they stimulate the ovaries.

In both males and females, luteinizing hormone stimulates the gonads to secrete stored sex hormones. In the testes of males, it stimulates the synthesis and secretion of testosterone. In females, it stimulates the ovaries to secrete testosterone, which is then converted into estrogen.

Follicle stimulating hormone stimulates the maturation of ovarian follicles in females so that they can begin ovulation. In males, follicle stimulating hormone supports the synthesis of sperm and sperm maturation. The two gonadotropins work together to keep the male and female reproductive systems healthy.