Testosterone levels in males can vary widely, but they typically range from about 300 to 1,000 nanograms per deciliter (ng/dL) in adult men. Levels below 300 ng/dL are generally considered low and may lead to symptoms of testosterone deficiency, such as fatigue, depression, decreased muscle mass, and reduced libido.
In some cases, testosterone levels can drop significantly lower due to various factors such as age, medical conditions (e.g.,


