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Hypogonadism

Low sex-hormone production. In men, low testosterone with symptoms — though obesity-related low testosterone is often a reversible state rather than true hypogonadism.

By the glp1.how editorial teamReviewed

Hypogonadism is low production of sex hormones. In men it refers to low testosterone together with symptoms.

A key distinction: true (pathologic) hypogonadism comes from disorders of the hormonal axis and generally needs lifelong testosterone replacement, whereas the mild low testosterone common in obesity is usually reversible. It comes partly from reduced SHBG and partly from obesity dampening the pituitary's LH signal, and weight loss is the first-line treatment (Anawalt et al., JAMA, 2026 (external link)). See the guide on HRT for men and GLP-1 medications.

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Revision history

Updated 1 time since Sep 2, 2026 · show changes
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Related terms

  • SHBG (sex hormone-binding globulin) · A protein that binds and transports sex hormones (including testosterone) in the blood. Obesity lowers SHBG, which reduces measured total testosterone and is a major reason obesity can look like low testosterone on a lab test.

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