Low testosterone, also known as hypogonadism, is a condition characterized by the body's inability to produce adequate levels of testosterone. Testosterone is a critical hormone in the male body, playing a vital role in the development of male reproductive tissues, muscle mass, bone density, and the regulation of libido and mood. A deficiency in testosterone can lead to a variety of health problems and can affect overall well-being.

This condition can affect men at any age, although it becomes increasingly common as men age. Men with low testosterone may experience a variety of symptoms that can significantly impact their quality of life and could potentially lead to other health issues if left untreated.