What is Testosterone Deficiency?

Testosterone deficiency, also known as hypogonadism, occurs when the body doesn't produce enough testosterone, the hormone responsible for the development of male secondary sexual characteristics and other important functions. Testosterone is primarily produced in the testes in men and in smaller amounts by the adrenal glands.

Primary hypogonadism: This is due to a problem with the testes themselves and can be caused by genetic conditions (such as Klinefelter syndrome), injury to the testes, or certain infections.

Secondary hypogonadism: This occurs when there's a problem with the hypothalamus or pituitary gland, which are responsible for signaling the testes to produce testosterone. Causes can include pituitary disorders, inflammatory diseases, certain medications, and chronic illnesses.

Age-related decline: Testosterone levels naturally decline with age, typically starting around age 30.