# Hypogonadism

Hypogonadism is when the testicles produce too little testosterone, with symptoms such as low libido, fatigue or erection problems.

In men, hypogonadism means low testosterone together with matching symptoms. Causes include ageing, illness, medicines and suppression of the hypothalamic-pituitary-gonadal axis, as can happen after misuse of anabolic-androgenic steroids. The Endocrine Society guideline says diagnosis needs symptoms and repeatedly low morning blood testosterone, confirmed on a second test. Treatment is medical, not a gym supplement.

Also called: Low testosterone syndrome, HPGA suppression.

Related: [Progressive overload](https://revns.com/dictionary/progressive-overload.md)

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