What is a normal testosterone level for men?

Roughly 12-30 nmol/L for AM fasted draws in men 25-55. Below 12 is functionally low for most men with symptoms.

Should I test total or free testosterone?

Both. Total without SHBG can mislead — high SHBG masks low free T even when total looks fine.

Total Testosterone (Total T)

Total testosterone measures the total amount of testosterone circulating in your blood — bound and unbound. It's the headline hormone marker on any men's panel, but it's only meaningful alongside SHBG (which determines how much is actually usable).

Category: Hormones
Units: nmol/L
Reference range: 12-30 nmol/L (men 25-55, AM fasted)

What does a high Total Testosterone result mean?

Above 30 nmol/L: anabolic steroid use, ongoing TRT, or rare adrenal/testicular tumours. In men not on TRT, recheck before concluding anything.

What does a low Total Testosterone result mean?

Below 12 nmol/L is clinically low. Below 8 nmol/L with symptoms meets most guideline criteria for hypogonadism. Reasons: ageing, obesity, poor sleep, opioids, alcohol, primary or secondary hypogonadism.

Why does Total Testosterone matter?

Drives libido, energy, body composition, recovery, mood, and long-term cardiovascular and metabolic health. The single most-watched hormone in men's bloodwork.

FAQs

What is a normal testosterone level for men?: Roughly 12-30 nmol/L for AM fasted draws in men 25-55. Below 12 is functionally low for most men with symptoms.
Should I test total or free testosterone?: Both. Total without SHBG can mislead — high SHBG masks low free T even when total looks fine.

References

[1]Testosterone Therapy in Men with Hypogonadism: Endocrine Society Clinical Practice GuidelineEndocrine Society / JCEM (2018)
[2]Diagnosis and Management of Male Late-Onset HypogonadismPubMed / J Clin Endocrinol Metab

Want Total Testosterone interpreted in the context of your full panel? Every FORM bloodwork tier covers it, with an MD walking you through the result.

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