Testosterone Level Test

Total testosterone analysis measures the total level of this primary male steroid hormone in the blood serum, including the portion bound to transport proteins (SHBG, albumin) and the free, biologically active portion. Testosterone is primarily produced in the testes (in men) and plays a key role in the development of secondary male sexual characteristics, maintaining muscle mass and bone strength, regulating libido (sex drive), sperm production, and influencing mood and energy levels.