Testosterone - Free

What is a testosterone-free test? The test calculates the amount of unattached, or free, testosterone there is in the blood. Testosterone is made in the testes (in men) and the ovaries (in women) and a small amount by the adrenal glands. Testosterone in men helps bring the changes after puberty like hair and muscle growth, penis and testes growth, deepening of the voice, it boosts sex drive and helps make sperm. In women, it will help in many organs and body processes. This test is used to detect abnormal levels of testosterone. It is used to diagnose infertility, testicular tumours, ambiguous genitalia, erectile dysfunction, pituitary tumours in men, lack of menstruation, obesity, extra hair growth (especially on the face), and the appearance of masculine features in females, and it is an indicator for polycystic ovary syndrome (PCOS).