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Diagnosis in the male: causes of secondary hypogonadism.
| Secondary hypogonadism | Examples |
|---|---|
| Gonadotrophin-releasing hormone deficiency | Opioids |
| Hypothalamic lesions | |
| Prader–Willi syndrome | |
| Hyperprolactinaemia | Prolactinoma |
| Haemochromatosis | |
| Myotonic dystrophy | |
| Pituitary disorders | Tumour |
| Irradiation |
