Also Known As: Total Testosterone, Free Testosterone, Bioavailable Testosterone
Testosterone tests are performed to determine the amount of testosterone in a blood sample.
A hormone responsible for controlling fertility and the development of sperm in men or anyone with a penis, testosterone also plays an important part in developing male sex characteristics such as a deeper voice, certain muscle development patterns, and hair growth. In women or anyone with ovaries, testosterone impacts the overall growth and development of muscle and reproductive tissue.
Testosterone tests can help diagnose health conditions in children and adults. Doctors also use tests to monitor hormone levels in patients receiving testosterone replacement therapy and transgender men who are on hormone therapy.