In order to feel like having sex you need a certain level of health
and a sense of wellbeing. Physical causes that possibly influence the
desire to make love for men are:
Diseases that disturb the hormonal balance.
Diseases with chronic pain, for example chronic rheumatoid arthritis.
Diseases that involve fatigue, serious anemia or the chronic fatigue
syndrome.
Diseases that reduce the general well being: cancer, aids.
Diseases with a depressive tendency.
Consequences of infertility and treatments for this: sex feels like an
obligation. Various medications: see also other questions.
Testosterone is a hormone that influences, among other things, the desire
to make love in men. An extremely low testosterone level in men can be
the direct cause of being less interested in making love. This shortage
of testosterone may have several causes. Congenital disorders in the
production of testosterone can cause the development of puberty to fail,
as well as sexual interest. Nowadays these cases are diagnosed in time
and shouldn't cause any problems in the development. Congenital anomalies
of the testicles can also cause a low testosterone level. If these
anomalies have existed since birth, the reduced feelings or no interest
at all in sex should also have existed since birth. Cancer treatments can
cause damage to the testicles; through medication and radiation therapy a
loss of function can occur.
Prolactin, another hormone, has a restraining effect on the desire for
sex when present at very high levels.
High doses of estrogenic hormones for example in the treatment of
prostate cancer always lead to a reduction of sexual interest.
Chronic diseases e.g diseases of the kidneys, heart and vascular
diseases, liver cirrhosis and alcoholism, heroin and cocaine addiction
can lead to a reduced interest in making love.
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