All of the testosterone in the blood, including free testosterone and testosterone attached to proteins like albumin and sex hormone-binding globulin (SHBG), is referred to as total testosterone. This measurement offers a thorough evaluation of the total quantity of testosterone present in the body.

An essential hormone, testosterone is mostly produced in the testes of males and in smaller quantities in the ovaries of females. It is essential for many physiological functions, such as:

Male reproductive tissues, including the testes and prostate gland, are developed and maintained.
encouragement of secondary sexual traits in men, such as the development of muscle mass, deepening of the voice, and hair growth on the face and body.
control of sexual function and libido (sex drive) in both genders.