Gonadotropins are protein hormones secreted by the pituitary gland.  The two main gonadotropins are called luteinizing hormone (LH) and follicle stimulating hormone.   After the pituitary gland produces gonadotropins, they trigger the production of other sex hormones.  Gonadotropins therefore play a part in egg production, in women, and sperm production, in men.

One of the most common difficulties facing women who are trying to become pregnant using in vitro fertilization (IVF) is making sure that the embryo can properly implant on the lining of their uteruses.  One reason that this can become

FRIDAY, Dec. 26 (HealthDay News) -- Women who choose to donate eggs to help infertile couples should know the procedure comes with both psychological and physical risks, the first study to examine the long-term effects of donation shows.

Everyone who has heard the old saying about a woman’s “biological clock ticking” is familiar with the idea that fertility is related to a woman’s age.  As women grow older, their fertility declines due to their ovaries undergoing natural, age-related changes.