Friday, March 26th, 2010

Testosterone Hormone

Blood-Test_0Testosterone is a steroid hormone, which belongs to the group called androgen. For men, it is the main sex hormone. Men make testosterone in their testes, the male generative gland. Women secrete testosterone from their ovaries.

In both men and women, testosterone plays a key role in health and well-being as well as in sexual functioning. Examples include enhanced libido, increased energy, increased production of red blood cells and protection against osteoporosis. On average, an adult human male body produces about forty to sixty times more testosterone than an adult female body.

Functions

  • For men, testosterone helps with the maturation of the sex organs including the penis and the scrotum in the fetus as well as during puberty later on in life.
  • As an anabolic effect, testosterone can help with the growth of muscle mass as well as increasing strength.
  • Supplements of testosterone in aging women, for example, that have gone through menopause may help to provide more strength for weakening bones.
  • In puberty, testosterone can be responsible for a male’s voice deepening and the growth of hair on the body especially on the face and on the chest.

Test Report

Age Male FEMEL   Female
14 to 15 years 170 to 540 ng/dL Less than 60 ng/dL
16 to 19 years 250 to 910 ng/dL Less than 70 ng/dL
20 years and older 280 to 1080 ng/dL Less than 70 ng/dL

Results may vary depending on the lab.

Need

  • In boys, the test is ordered, often along with the FSH and LH tests, if puberty is delayed or slow in developing.
  • If a woman is having irregular or no menstrual periods or difficulty in getting pregnant.
  • If a young boy seems to be undergoing a very early (precocious) puberty.
  • In men, the test may be ordered when infertility is suspected or if the patient has a decreased sex drive or erectile dysfunction.
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