Psychologic factors and the hormone testosterone, which is produced by the testicles, regulate male libido. Studies in animals have demonstrated that removal of the testicles, a procedure called castration, results in a precipitous decline in testosterone levels in the bloodstream. Shortly thereafter, the castrated animal loses sexual interest.

Castration has the same effect on adult men, and loss of sexual desire is commonplace among men with advanced prostate or testicular cancer who have had to sacrifice their testicles to save or prolong their lives.

Some impotent men still have some, but not enough, testosterone. Their testicles no longer work as efficiently as they once did. As a consequence, they produce inadequate amounts of testosterone and have lower than normal serum testosterone levels. These men notice a gradual but progressive diminution in sexual desire. Potency may be preserved during brief interludes of subnormal serum testosterone levels, but when testosterone production remains chronically low, impotence is inevitable. Treatment with testosterone usually restores sexual desire and potency.

Emotional setbacks as a result of clinical depression, loss of a loved one, or a business reversal can also result in a decline in libido. For these men, whose testosterone levels are normal, testosterone treatment is neither warranted nor effective. Rather, recognition and treatment of the depression, the grief, or the self-doubts are more appropriate. Counseling or psychotherapy is often helpful in restoring sexual desire.

One Response to “LIBIDO”

  1. [...] Libido describes the intensity of sexual desire or drive. [...]

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