In men, testosterone levels are critical in the evaluation of impotence and infertility. Reduction in libido can occur from psychological causes such as loss of intimacy, stress, distraction or depression.

Other causes are diseases of the testes glands that produce and control testosterone which can cause low testosterone levels. He suggested replacement treatment therapy.

My boyfriend is 54 and seems to have lost his self confidence after the occssional making love problem. I think he has now convinced himself he cannot achieve intimate readiness for love making. I'm trying to avoid the...