Endocrine assessment of impotence--pitfalls of measuring serum testosterone without sex-hormone-binding globulin.

Hardy, K J; Seckl, J R · Postgrad Med J · 1994

case_report · Level V

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Abstract

The pitfalls of measuring only total serum testosterone are illustrated by a 52 year old man whose hyperprolactinaemia was associated with normal total serum testosterone but a raised sex-hormone-binding globulin, giving a low free testosterone. Prolactin suppression with bromocriptine normalized sex-hormone-binding globulin and free testosterone, and restored potency and energy after 30 years of impotence and tiredness.

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