Almost 1 in 10 American women of reproductive age have a problem falling pregnant and carrying the baby to term. Among couples who are experiencing problems in conceiving a baby, 40% of cases are due to male infertility. Globally, infertility is one the rise in most developed nations. There are a number of difference reasons for infertility but most causes either directly or indirectly affect the hormones that control fertility. What are fertility hormones? The term fertility hormones refers to male and female sex hormones that play an important role in reproduction. Problems with these hormones or the glands that secrete it are among the more common causes of infertility in males and females. Therefore some fertility treatments require the administration of these hormones to help increase the chance of conceiving. It is important to understand that these fertility hormones are central to the male and female sexual development and functioning. In other words most of these hormones are also responsible for the physical characteristics that make men and women different. For example, testosterone which is the main male sex hormone is also responsible for facial hair growth whereas estrogen in women plays a part in breast size and development. … Continue reading Fertility Hormones (Men and Women) Source, Effects, Symptoms