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Clinical features

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These may include:

  • diminished sex drive and erection
  • loss of ejaculation
  • low stamina
  • muscle atrophy
  • decreased secondary sexual hair
  • less frequent shaving
  • regression of spermatogenesis

Primary hypogonadism is suggested by a history of testicular trauma, orchitis, testicular surgery or torsion, chemotherapy or irradiation.

Hypothalamic-pituitary tumours are suggested by symptoms such as headaches, impaired visual fields, polydipsia and polyuria, or evidence of pituitary hormone excess such as acromegaly, Cushing's disease or hyperprolactinaemia.


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