What Are the Most Common Symptoms of Low Testosterone and How Is It Diagnosed?
Low testosterone, clinically termed hypogonadism, is a medical condition characterized by insufficient testosterone production by the testicles, resulting in serum testosterone levels below the normal reference range for adult men (typically below 300 ng/dL as of 2025). This androgen deficiency affects approximately 2-6 million American men, according to the American Urological Association (2018), yet remains underdiagnosed…