TD is a consequence of the body failing to produce sufficient testosterone to function normally, caused by disruption of 1 or more levels of the hypothalamic-pituitary-gonadal (HPG) axis.1
It can be broadly classified as being either primary, secondary, or combined (mixed).
References
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page