Diminished testosterone levels in men can be caused by a number of things, from a testicle injury to getting older. Hypogonadism is a condition in which a male's body fails to produce enough testosterone, And while such a drop in testosterone can have ramifications for fertility, it's a potentially serious problem given that can also lead to osteoporosis, loss of muscle mass and even cardiovascular disease.

Hypogonadism, as low-T is known, is common among men who have undergone an orchiectomy, the surgical removal of one or both testicles. For some men, the loss of a testicle is a devastating blow to their masculinity, which can result in depression and a keenly felt loss of identity.

In some cases, the remaining testicle can produce sufficient testosterone to preserve fertility and avert a host of health consequences. For orchiectomy patients who aren't quite so fortunate, several treatment options can restore their health and vitality.